Relevant bibliographies by topics / Decoherence

Academic literature on the topic 'Decoherence'

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Published: 4 June 2021
Last updated: 25 May 2024

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Journal articles on the topic "Decoherence"

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ZHANG, JIAN-SONG, and JING-BO XU. "ENTANGLEMENT DYNAMICS OF TWO TWO-MODE TWO-PHOTON JAYNES–CUMMINGS MODELS IN THE PRESENCE OF PHASE DECOHERENCE." Modern Physics Letters B 22, no. 08 (March 30, 2008): 561–68. http://dx.doi.org/10.1142/s0217984908014754.

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We investigate the entanglement of two two-mode two-photon Jaynes–Cummings models in the presence of phase decoherence. We find an explicit analytical solution of the system and discuss the influence of the phase decoherenc on the entanglement dynamics. Our results shows that the entanglement of the two initially entangled atoms can remain zero for a finite time and revive later. However, if the phase decoherence is taken into accounted, the entanglement cannot revive completely.
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Rebolledo, Rolando. "A View on Decoherence Via Master Equations." Open Systems & Information Dynamics 12, no. 01 (March 2005): 37–54. http://dx.doi.org/10.1007/s11080-005-0485-3.

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This paper addresses the discussion on probabilistic features of the concept of decoherence as it appeared in quantum physics. Given a Lindblad-type generator of an open system dynamics, we derive applicable criteria to characterize decoherent behaviour.
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Sarkardei, M. R. "Towards the consistent histories approach to quantum mechanics." Canadian Journal of Physics 82, no. 1 (January 1, 2004): 1–17. http://dx.doi.org/10.1139/p03-122.

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We introduce and review the consistent (decoherent) histories approach to quantum mechanics due to Griffiths, to Gell-Mann and Hartle, and to Omnes. We will not attempt an in depth look at this approach as it would be impossible to treat it in such a short review. The emphasis is on understanding the broader meaning of the consistency and decoherence. The consistent history approach to quantum mechanics provides a precise conceptual framework for describing how a closed quantum system develops in time. The approach also provides a framework from which we may observe the emergence of an approximately classical domain for macroscopic systems, together with the conventional Copenhagen quantum mechanics for microscopic subsystems. We will study the formalism of decoherence and look at several approaches to decoherence. In examining a system of quantum Brownian motion and using the methods of Feynman and Vernon, we derive an equation of motion for the density matrix, the master equation of the system. This leads us to a brief overview of decoherence. PACS Nos.: 03.65.Ta, 03.65.–w, 03.65.Yz, 04.60.–m, 05.30.–d
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Huang, Zhiming. "Suppressing decoherence of noisy environment through filtering operator." International Journal of Modern Physics B 34, no. 07 (March 11, 2020): 2050051. http://dx.doi.org/10.1142/s0217979220500514.

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Inevitable interaction between quantum system and environment will induce decoherence which would destroy the quantum coherence (QC) of quantum system. In this paper, we examine the QC behaviors for a single qubit locally coupled to the zero-temperature multiple bosonic reservoirs. Comparing the Markovian and non-Markovian QC behaviors, it is demonstrated that QC decays as decoherent time goes by, and non-Markovian QC exhibits obvious oscillating behaviors. The oscillatory frequency and amplitude increase with growing coupling strength and number of reservoirs. In addition, in non-Markovian regime, QC vanishes at some discrete critical time points. Finally, we reveal an effective method to suppress decoherence with filtering operation.
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Stamp, P. C. E. "Environmental decoherence versus intrinsic decoherence." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, no. 1975 (September 28, 2012): 4429–53. http://dx.doi.org/10.1098/rsta.2012.0162.

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We review the difference between standard environmental decoherence and ‘intrinsic decoherence’, which is taken to be an ineluctable process of Nature. Environmental decoherence is typically modelled by spin bath or oscillator modes—we review some of the unanswered questions not captured by these models, and also the application of them to experiments. Finally, a sketch is given of a new theoretical approach to intrinsic decoherence, and this scheme is applied to the discussion of gravitational decoherence.
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Hagar, Amit. "Decoherence." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, no. 1975 (September 28, 2012): 4425–28. http://dx.doi.org/10.1098/rsta.2012.0296.

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Kowalski, Andres M., and Angelo Plastino. "Decoherence, Anti-Decoherence, and Fisher Information." Entropy 23, no. 8 (August 12, 2021): 1035. http://dx.doi.org/10.3390/e23081035.

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In this work, we study quantum decoherence as reflected by the dynamics of a system that accounts for the interaction between matter and a given field. The process is described by an important information geometry tool: Fisher’s information measure (FIM). We find that it appropriately describes this concept, detecting salient details of the quantum–classical changeover (qcc). A good description of the qcc report can thus be obtained; in particular, a clear insight into the role that the uncertainty principle (UP) plays in the pertinent proceedings is presented. Plotting FIM versus a system’s motion invariant related to the UP, one can also visualize how anti-decoherence takes place, as opposed to the decoherence process studied in dozens of papers. In Fisher terms, the qcc can be seen as an order (quantum)–disorder (classical, including chaos) transition.
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Dorner, U., A. Klein, and D. Jaksch. "A quantum repeater based on decoherence free subspaces." Quantum Information and Computation 8, no. 5 (May 2008): 468–88. http://dx.doi.org/10.26421/qic8.5-7.

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We study a quantum repeater which is based on decoherence free quantum gates recently proposed by Klein {\it et al.} [Phys. Rev. A, {\bf 73}, 012332 (2006)]. A number of operations on the decoherence free subspace in this scheme makes use of an ancilla qubit, which undergoes dephasing and thus introduces decoherence to the system. We examine how this decoherence affects entanglement swapping and purification as well as the performance of a quantum repeater. We compare the decoherence free quantum repeater with a quantum repeater based on qubits that are subject to decoherence and show that it outperforms the latter when decoherence due to long waiting times of conventional qubits becomes significant. Thus, a quantum repeater based on decoherence free subspaces is a possibility to greatly improve quantum communication over long or even intercontinental distances.
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Fagnola, Franco, Emanuela Sasso, and Veronica Umanità. "Structure of Uniformly Continuous Quantum Markov Semigroups with Atomic Decoherence-free Subalgebra." Open Systems & Information Dynamics 24, no. 03 (September 2017): 1740005. http://dx.doi.org/10.1142/s1230161217400054.

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We establish the structure of uniformly continuous quantum Markov semigroups with atomic decoherence-free subalgebra and apply the result to derive a natural decomposition of a Markovian open quantum system into its noiseless (decoherence-free) and irreducible (ergodic) components. We deduce the structure of invariant states and a method for finding decoherence-free subsystems and subspaces. The relationship between environment induced decoherence and the decoherence-free subalgebra is also discussed.
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Filatov, Stanislav, and Marcis Auzinsh. "Unitarity of Decoherence Implies Possibility of Decoherence-like Dynamics towards Macroscopic Superpositions." Entropy 24, no. 11 (October 28, 2022): 1546. http://dx.doi.org/10.3390/e24111546.

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Quantum decoherence is crucial to understanding the emergence of the classical world from the underlying quantum reality. Decoherence dynamics are unitary, although they superselect a preferred eigenbasis. Decoherence dynamics result in stable macroscopic, localized, classical-like states. We show that the above-mentioned facts imply the possibility of the existence of decoherence-like dynamics that result in stable macroscopic non-localized non-classical-like states. Being rooted in the fabric of the decoherence theory itself, this property implies environments that steer the decoherence towards, for example, spatial superpositions of macroscopic objects. To demonstrate this, we provide thought-experimental, mathematical and philosophical arguments.
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Dissertations / Theses on the topic "Decoherence"

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ASPREA, LORENZO. "Gravitational Decoherence." Doctoral thesis, Università degli Studi di Trieste, 2021. http://hdl.handle.net/11368/2981626.

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The recent exciting first detections of gravitational waves, which marked a new era in astrophysics and cosmology, have pushed the scientific community towards the construction of ever more sophisticated ground and space based detectors to observe waves in a variety of ranges, possibly down to the cosmic background gravitational radiation. Detecting the latter would open the possibility to gain crucial information about the universe at its very primordial stage, at about 10^(-22) s after the Big Bang, where we expect our description of gravity to fail, especially because of its unclear relation with quantum matter. Most gravitational waves (which can be thought of as small perturbations of the metric propagating through spacetime at the speed of light) that arrive on the Earth are produced by different unresolved mechanisms and sources, and thus result in a stochastic perturbation of the flat spacetime background. Within the framework of quantum theory, this altered background affects the dynamics of matter propagation and, when the quantum state is in a superposition, it leads to decoherence effects, as it's typical of any noisy environment. In this scenario, the extreme sensitivity of matter waves to gravity gradients makes matter-wave interferometers a perfect candidate for exploring the gravitational wave background and, at the same time, for possibly answering some fundamental questions regarding the nature of gravity, and its coupling to quantum matter. Besides the technological challenge of building sensitive (therefore large) enough matter-wave interferometers, which realistically would have to operate in outer space, even from the theoretical point of view it is not clear how they would respond to a gravitational background produced by random sources, as no comprehensive dynamical description of the gravity induced decoherence process has been so far proposed. The decoherence effect of a stochastic (or quantum) perturbation of the metric has in fact been studied by several authors, each of whom has produced a different model for the evolution of off-diagonal elements of the density matrix of a quantum state or, more generally, the loss of interference in the system. However, that of giving a universal and meaningful description of the phenomenon is still an open problem, as the different models so far proposed refer to particular regimes of approximation and thus seem to lead to different and apparently incompatible conclusions. The goal of our work is to formulate a more general description of gravity induced deocherence, in the form of a master equation, which is able to encompass the existing literature and explain the apparent discrepancies, as well as extend the so far know results. With a more general and unambiguous dynamics, we aim at assessing whether and to what extent matter-wave interferometers constitute a viable platform for probing of the cosmic gravitational background.
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Abyaneh, Varqa. "Gravitationally induced decoherence." Thesis, University of York, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428052.

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Dodd, Peter James. "Decoherence and emergent classicality." Thesis, Imperial College London, 2004. http://hdl.handle.net/10044/1/11529.

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Helm, Julius. "Classical vs. Quantum Decoherence." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-84542.

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Based on the superposition principle, any two states of a quantum system may be coherently superposed to yield a novel state. Such a simple construction is at the heart of genuinely quantum phenomena such as interference of massive particles or quantum entanglement. Yet, these superpositions are susceptible to environmental influences, eventually leading to a complete disappearance of the system's quantum character. In principle, two distinct mechanisms responsible for this process of decoherence may be identified. In a classical decoherence setting, on the one hand, stochastic fluctuations of classical, ambient fields are the relevant source. This approach leads to a formulation in terms of stochastic Hamiltonians; the dynamics is unitary, yet stochastic. In a quantum decoherence scenario, on the other hand, the system is described in the language of open quantum systems. Here, the environmental degrees of freedom are to be treated quantum mechanically, too. The loss of coherence is then a direct consequence of growing correlations between system and environment. The purpose of the present thesis is to clarify the distinction between classical and quantum decoherence. It is known that there exist decoherence processes that are not reconcilable with the classical approach. We deem it desirable to have a simple, feasible model at hand of which it is known that it cannot be understood in terms of fluctuating fields. Indeed, we find such an example of true quantum decoherence. The calculation of the norm distance to the convex set of classical dynamics allows for a quantitative assessment of the results. In order to incorporate genuine irreversibility, we extend the original toy model by an additional bath. Here, the fragility of the true quantum nature of the dynamics under increasing coupling strength is evident. The geometric character of our findings offers remarkable insights into the geometry of the set of non-classical decoherence maps. We give a very intuitive geometrical measure---a volume---for the quantumness of dynamics. This enables us to identify the decoherence process of maximum quantumness, that is, having maximal distance to the convex set of dynamics consistent with the stochastic, classical approach. In addition, we observe a distinct correlation between the decoherence potential of a given dynamics and its achievable quantumness. In a last step, we study the notion of quantum decoherence in the context of a bipartite system which couples locally to the subsystems' respective environments. A simple argument shows that in the case of a separable environment the resulting dynamics is of classical nature. Based on a realistic experiment, we analyze the impact of entanglement between the local environments on the nature of the dynamics. Interestingly, despite the variety of entangled environmental states scrutinized, no single instance of true quantum decoherence is encountered. In part, the identification of the classical nature relies on numerical schemes. However, for a large class of dynamics, we are able to exclude analytically the true quantum nature.
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Branderhorst, Matthijs Pieter Arie. "Coherent control of decoherence." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670035.

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FAROOQ, UMER. "Decoherence in Quantum Networks." Doctoral thesis, Università degli Studi di Camerino, 2015. http://hdl.handle.net/11581/401743.

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The title of the present dissertation Decoherence in Quantum Network sounds very general and all-inclusive. Indeed it embraces two topics (decoherence and quantum network) from the area of Quantum Mechanics each of which is described in all respects by a huge literature developed in the last three decades [...]. Quantum decoherence, as the name lets it mean, is the mechanism that makes a quantum system loose its coherence properties, and with them the capability of giving rise to interference phenomena or to other interesting quantum effects [...]. The key idea promoted by decoherence is the insight that realistic quantum systems are never isolated, but are immersed in the surrounding environment and interact continuously with it [...]. As an example one may consider a two-level quantum system (i.e. a quantum bit, usually shortened with a terminology from information science to \qubit" ) in contact with a wide environment. Hence, quantum systems are open systems, and continuously interact or exchange information with an external environment whose degrees of freedom are too numerous to be monitored. The resulting correlation between the system and the environment spoils quantum coherence and brings about the transition from a pure quantum state to a mixture of quantum state resulting a classical state. To describe decoherence different kind of approaches can be used (for example Master equation, random matrix, etc). A quantum network typically consists of a number of quantum objects (e.g., atoms, ions, quantum dots, cavities, etc.), to be referred to hereafter as the sites or the nodes of the network. They can interact and the interactions (or their correlations) will be usually described by the edges of a graph. Quantum networks can address different information processing tasks. For instance a quantum state can be transferred from qubit to qubit down a chain solely due to the interactions, that is according to the laws of quantum physics [...]. Quantum networks offer us new opportunities and phenomena as compared to classical networks. An extension to large scale of the idea of a quantum network could lead to a futurible quantum internet [...]. The study of networks has traditionally been the territory of graph theory [...], also with the advent of their quantum versions. Within simple quantum network model information processing is usually described by assuming perfect control of the underlying graph. However, this is not much realistic since randomness is often present and it leads to decoherence effects [...]. In contrast, the conservation of coherence is essential for any quantum information process [...], hence there is a persistent interest in decoherence effects in quantum networks, which motivate us to study models for describing such noisy effects. We consider a simple model of quantum network, employing qubits (spin-1/2 particles) attached to the nodes of an underlying graph and we study the simplest task, namely information storage (on a single and two qubits), when the graph randomly changes in time. Actually we randomly add edges to an initially disconnected graph according to the Gilbert model characterized by a weighting parameter ex [...] and in an identically and independent way at each time step. We find that by increasing ex the dynamics of relevant quantities like fidelity, entropy or concurrence, gradually transforms from damped to damped oscillatory and finally to purely oscillatory. That leads to the paper [see, Information dissipation in random quantum networks, by U. Farooq and S. Mancini, OSID 21(3), 1450004, 2014]. We also study a system composed by pairs of qubits attached to each node of a linear chain, a model that stems from quantum dot arrays. Here we use the approach of evolution with a stochastic Hamiltonian to describe the noisy effects. We then evaluate the effect of two most common disorders, namely exchange coupling and hyperfine interaction fluctuations, in adiabatic preparation of ground state in such model. We show that the adiabatic ground state preparation is highly robust against these disorders making the chain a good analog simulator. Moreover, we also study the adiabatic information transfer, using singlet-triplet states, across the chain. In contrast to ground state preparation the transfer mechanism is highly affected by disorders. This suggested that for communication tasks across such chains adiabatic evolution is not as effective and quantum quenches would be preferable. That leads to the paper [see, Adiabatic many-body state preparation and information transfer in quantum dot arrays, by U. Farooq, A. Bayat, S. Mancini and S. Bose Phys. Rev. B 91, 134303, 2015]. The present work is organized as follows. In chapter 1, we shall give a survey of the various types of approach which can be employed to analyse the dynamics of open quantum systems that leads to decoherence effects. In chapter 2, we shall give a general description about quantum network and its possible applications. In chapter 3, we shall discuss the problem of quantum state transfer in qubit network and shall give a brief overview of some scheme that enable nearly prefect state transfer. In chapter 4, we shall discuss singlet-triplet networks, that is networks having on each site a pair of (generally entangled) qubit. Then within this framework we propose a model stemming from quantum dot array. There we shall address the problem of ground state preparation and state transfer. Finally we shall describe the inherent entanglement of the ground state of strongly correlated systems can be exploited for both classical and quantum communications. In chapter 5, we shall propose a decoherence model for qubit networks based on edges representing XY interactions randomly added to a disconnected graph accordingly to a suitable probability distribution. In this way we shall describe dissipation of information initially localize in single or two qubits all over the network. In chapter 6 we shall model the noisy effects in the quantum dot array introduced in chapter 4 and investigate their consequences on the preparation of ground state and quantum state transfer mechanism. Finally we shall draw conclusions.
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Löfgren, Viktor. "Dissipative Quantum Dynamics and Decoherence." Thesis, Umeå universitet, Institutionen för fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-44341.

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Abstract This thesis has two parts, in the first, the Caldeira-Leggett model is introduced; its derivation and general consequences are explored following a paper by Caldeira and Leggett[1]. An operator-formalism shortcut through some of the more mathematically cumbersome parts of the derivation of the model is also developed. The correlation of the force resulting from reservoir-interaction is examined in the high- and low-temperature limits, and the Langevin equation is shown to emerge in the classical limit.Abstract The second part introduces decoherence through a thought experiment that demonstrates the destructive effect of random phase shifts on interference terms, and then follows another paper by Caldeira and Leggett[2] in applying their model further to study the phenomenon of dissipative decoherence. The time-evolution of the interference terms in a superposition of Gaussian wave packets in a harmonic oscillator potential is studied when interacting with a heat bath, and they are shown to vanish at a rate much faster than the relaxation of the system.
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Teklemariam, Grum 1965. "Explorations of quantum decoherence phenomena." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8484.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 2002.
Includes bibliographical references (p. 77-80).
This thesis describes the experimental exploration of quantum decoherence using discrete and continuous-time decoherence maps. The experimental methodology uses liquid-state nuclear magnetic resonance spectroscopy techniques. Initially, a brief discussion of coherent control methods is given. Then, a detailed discussion of the decoherent control methods is presented. These methods describe how strong measurements can be emulated in an ensemble system by using pulsed magnetic field gradients, and how NMR decoupling techniques can be used to implement partial trace operations. Next, using quantum erasers we explore the stability of three-particle systems under different entangling interactions. With a two-spin system we illustrate the essential features of quantum erasers. The extension to three-spins allows us to use the pair of orthogonal decoherent operations used in quantum erasers to probe the two classes of entanglement in three-particle systems: the GHZ state and the W state. Finally, we develop a decoherence model of a decohering two-level system coupled to an environment with a few degrees of freedom. The couplings are of the [sigma]z [sigma]z type and only induce coherence damping. By introducing a stochastic evolution on the environment, the resulting randomization of the environment phases causes loss of information over the environment degrees of freedom and decohers the system. Control parameters in the stochastic driving of the environment were used to vary the rates of decoherence on the system, thereby allowing the establishment of a scaling law that related control parameters to decay rates.
by Grum Teklemariam.
Ph.D.
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Trubko, Raisa, and Alexander Cronin. "Decoherence Spectroscopy for Atom Interferometry." MDPI AG, 2016. http://hdl.handle.net/10150/621409.

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Decoherence due to photon scattering in an atom interferometer was studied as a function of laser frequency near an atomic resonance. The resulting decoherence (contrast-loss) spectra will be used to calibrate measurements of tune-out wavelengths that are made with the same apparatus. To support this goal, a theoretical model of decoherence spectroscopy is presented here along with experimental tests of this model.
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Oniga, Teodora. "Theory of quantum gravitational decoherence." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231085.

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As quantum systems can never be isolated from their environment entirely, it is expected that the spacetime fluctuations will influence their evolution. In particular, the environmental interaction may cause the loss of quantum superpositions, or decoherence. In this thesis, we examine the effects of the quantised environmental background on a range of bosonic fields in the formalism of open quantum systems. We first quantise linearised gravity in a gauge invariant way, using Dirac's constraint quantisation. We then use the influence functional technique to obtain an exact master equation for general bosonic matter interacting with weak gravity. As an application of this, we investigate the decoherence of free scalar, electromagnetic and gravitational fields. For long-time decoherence, under the Markov approximation, the dissipative terms in the master equation vanish, leading to no decay of quantum interferences. As a short-time effect, we study the master equation for a many particle state of a free scalar field, massive or massless and relativistic or non-relativistic. We find that in this case, the particles exhibit a counterintuitive behaviour of bundling towards the same quantum state that is not shared by the single particle master equation. Such collective effects, as well as possible long-time decoherence for fields in an external potential may have important implications in setting limits for precision measurements and astronomical observations.
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Books on the topic "Decoherence"

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Decoherence. Ithaca, NY: Stockport Flats, 2013.

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Duplantier, Bertrand, Jean-Michel Raimond, and Vincent Rivasseau, eds. Quantum Decoherence. Basel: Birkhäuser Basel, 2007. http://dx.doi.org/10.1007/978-3-7643-7808-0.

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Buchleitner, Andreas, Carlos Viviescas, and Markus Tiersch, eds. Entanglement and Decoherence. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88169-8.

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Mensky, Michael B. Quantum Measurements and Decoherence. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9566-7.

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Saverio, Pascazio, and Nakazato Hiromichi, eds. Decoherence and quantum measurements. Singapore: World Scientific, 1997.

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Breuer, Heinz-Peter, and Francesco Petruccione, eds. Relativistic Quantum Measurement and Decoherence. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45369-5.

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Bertrand, Duplantier, Raimond J. -M, Rivasseau Vincent, and Institut Henri Poincaré, eds. Quantum decoherence: Poincare Seminar 2005. Basel: Birkhauser, 2007.

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Elze, Hans-Thomas, ed. Decoherence and Entropy in Complex Systems. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b13745.

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Blanchard, Philippe, Erich Joos, Domenico Giulini, Clau Kiefer, and Ion-Olimpiu Stamatescu, eds. Decoherence: Theoretical, Experimental, and Conceptual Problems. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-46657-6.

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Mikio, Nakahara, Rahimi Robabeh, and SaiToh Akira, eds. Decoherence suppression in quantum systems 2008. Hackensack, NJ: World Scientific, 2010.

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Book chapters on the topic "Decoherence"

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Joos, Erich. "Decoherence." In Compendium of Quantum Physics, 155–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-70626-7_48.

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Orszag, Miguel. "Decoherence." In Quantum Optics, 355–73. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29037-9_20.

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Kok, Pieter. "Decoherence." In Undergraduate Lecture Notes in Physics, 115–38. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92207-2_7.

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Orszag, Miguel. "Decoherence." In Quantum Optics, 291–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04114-7_20.

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Pade, Jochen. "Decoherence." In Undergraduate Lecture Notes in Physics, 147–65. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00813-4_24.

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Pade, Jochen. "Decoherence." In Undergraduate Lecture Notes in Physics, 149–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00467-5_24.

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Kok, Pieter. "Decoherence." In Undergraduate Lecture Notes in Physics, 143–71. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-16165-0_7.

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Rajasekar, S., and R. Velusamy. "Quantum Decoherence." In Quantum Mechanics II, 179–200. 2nd ed. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003172192-8.

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Crull, Elise M. "Quantum Decoherence." In The Routledge Companion to Philosophy of Physics, 200–212. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781315623818-19.

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Choi, Mahn-Soo. "Quantum Decoherence." In A Quantum Computation Workbook, 189–255. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-91214-7_5.

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Conference papers on the topic "Decoherence"

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Brandt, Howard E. "Qubit decoherence." In AeroSense '97, edited by Steven P. Hotaling and Andrew R. Pirich. SPIE, 1997. http://dx.doi.org/10.1117/12.277661.

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Fedichkin, Leonid, Arkady Fedorov, and Vladimir Privman. "Measures of decoherence." In AeroSense 2003, edited by Eric Donkor, Andrew R. Pirich, and Howard E. Brandt. SPIE, 2003. http://dx.doi.org/10.1117/12.486792.

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Dugić, Miroljub. "On Quantum Decoherence." In SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION. AIP, 2007. http://dx.doi.org/10.1063/1.2733046.

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Schneider, Sara, Daniel F. V. James, and Gerard J. Milburn. "Entanglement through decoherence." In International Conference on Quantum Information. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/icqi.2001.pa19.

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Davidovich, Luiz. "Entanglement and Decoherence." In Workshop on Entanglement and Quantum Decoherence. Washington, D.C.: Optica Publishing Group, 2008. http://dx.doi.org/10.1364/weqd.2008.ed1.

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The interaction between entangled multi-particle systems with the environment leads to both local dynamics, associated with single-particle dissipation, diffusion, and decay, and to global dynamics, which may provoke the disappearance of entanglement at a finite time [1-6]. This phenomenon may occur even when single-particle decoherence is asymptotic in time, and constitutes yet another distinct trait of entanglement. It has been recently demonstrated, for two qubits under the action of independent environments, using an all-optical setup [7]. In this talk, some of the peculiarities of the dynamics of two-qubit entangled states undergoing decoherence will be reviewed, new features of the experiment realized at the Federal University of Rio de Janeiro [7] will be described, and the extension of these considerations to multi-particle entangled states will be discussed. Scaling laws for the decay of entanglement and its finite-time extinction in multi-particle systems will be discussed.
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Broadbent, C. J., J. Jing, T. Yu, and J. H. Eberly. "Reduced decoherence in non-Markovian systems lacking decoherence free subspaces." In Laser Science. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/ls.2011.lmb5.

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You, J. Q., Xuedong Hu, S. Ashhab, and Franco Nori. "Low-decoherence flux qubit." In Workshop on Entanglement and Quantum Decoherence. Washington, D.C.: Optica Publishing Group, 2008. http://dx.doi.org/10.1364/weqd.2008.sss3.

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A flux qubit can have a relatively long decoherence time at the degeneracy point, but away from this point the decoherence time is greatly reduced by dephasing. This limits the practical applications of flux qubits. Here we propose a new qubit design modified from the commonly used flux qubit by introducing an additional capacitor shunted in parallel to the smaller Josephson junction (JJ) in the loop. Our results show that the effects of noise can be considerably suppressed, particularly away from the degeneracy point, by both reducing the coupling energy of the JJ and increasing the shunt capacitance. This shunt capacitance provides a novel way to improve the qubit.
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Walmsley, Ian, Matthijs Branderhorst, Pablo Londero, Constantin Brif, Herschel Rabitz, and Robert Kosut. "COHERENT CONTROL OF DECOHERENCE." In Laser Science. Washington, D.C.: OSA, 2005. http://dx.doi.org/10.1364/ls.2005.ltub2.

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QUEISSER, F. S., C. KIEFER, and A. A. STAROBINSKY. "COSMOLOGICAL CONSTANT FROM DECOHERENCE?" In Proceedings of the MG12 Meeting on General Relativity. WORLD SCIENTIFIC, 2012. http://dx.doi.org/10.1142/9789814374552_0199.

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GÖKLÜ, ERTAN, CLAUS LÄMMERZAHL, and HEINZ-PETER BREUER. "METRIC FLUCTUATIONS AND DECOHERENCE." In Proceedings of the MG12 Meeting on General Relativity. WORLD SCIENTIFIC, 2012. http://dx.doi.org/10.1142/9789814374552_0496.

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Reports on the topic "Decoherence"

1

Ng, K. Y. Decoherence and Landau-Damping. Office of Scientific and Technical Information (OSTI), December 2005. http://dx.doi.org/10.2172/878997.

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Connolly, Roger. Decoherence of Betatron Oscillations in RHIC. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/1119243.

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Grossman, Yuval, and Mihir Worah. Atmospheric $\nu_{\mu}$ Deficit from Decoherence. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/1451820.

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Barrett, Sean E. Spin Decoherence Measurements for Solid State Qubits. Fort Belvoir, VA: Defense Technical Information Center, July 2005. http://dx.doi.org/10.21236/ada459337.

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Lyon, Stephen A. Electron Spin Decoherence Times in Si-Based Structures. Fort Belvoir, VA: Defense Technical Information Center, November 2005. http://dx.doi.org/10.21236/ada441004.

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Saxena, Avadh, and Julia Cen. Anti-PT-symmetric qubit: Decoherence and Entanglement Entropy. Office of Scientific and Technical Information (OSTI), August 2020. http://dx.doi.org/10.2172/1647202.

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Zurek, Wojciech H. Quantum Darwinism, Decoherence, and the Randomness of Quantum Jumps. Office of Scientific and Technical Information (OSTI), June 2014. http://dx.doi.org/10.2172/1133748.

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Yu, Clare C. Microscopic Sources of Decoherence and Noise in Josephson Junction Qubits. Fort Belvoir, VA: Defense Technical Information Center, January 2008. http://dx.doi.org/10.21236/ada484569.

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Korotkov, Alexander. State Purification and Decoherence Suppression by Continuous Measurement of a Qubit. Fort Belvoir, VA: Defense Technical Information Center, October 2004. http://dx.doi.org/10.21236/ada427409.

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Magyar, Rudolph J., Andrew David Baczewski, and Ann Elisabet Mattsson. Noise Decoherence and Errors from Entanglement-function Theory for Quantum Computing. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1531336.

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