Littérature scientifique sur le sujet « Stochastic quantum Zeno phenomena »

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « Stochastic quantum Zeno phenomena ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Articles de revues sur le sujet "Stochastic quantum Zeno phenomena"

1

Yamaga, Kazuki. « Stochastic Process Emerged from Lattice Fermion Systems by Repeated Measurements and Long-Time Limit ». Axioms 9, no 3 (29 juillet 2020) : 90. http://dx.doi.org/10.3390/axioms9030090.

Texte intégral
Résumé :
It is known that, in quantum theory, measurements may suppress Hamiltonian dynamics of a system. A famous example is the ‘Quantum Zeno Effect’. This is the phenomena that, if one performs the measurements M times asking whether the system is in the same state as the one at the initial time until the fixed measurement time t, then survival probability tends to 1 by taking the limit M→∞. This is the case for fixed measurement time t. It is known that, if one takes measurement time infinite at appropriate scaling, the ‘Quantum Zeno Effect’ does not occur and the effect of Hamiltonian dynamics emerges. In the present paper, we consider the long time repeated measurements and the dynamics of quantum many body systems in the scaling where the effect of measurements and dynamics are balanced. We show that the stochastic process, called the symmetric simple exclusion process (SSEP), is obtained from the repeated and long time measurements of configuration of particles in finite lattice fermion systems. The emerging stochastic process is independent of potential and interaction of the underlying Hamiltonian of the system.
Styles APA, Harvard, Vancouver, ISO, etc.
2

Brandner, Kay. « Coherent Transport in Periodically Driven Mesoscopic Conductors : From Scattering Amplitudes to Quantum Thermodynamics ». Zeitschrift für Naturforschung A 75, no 5 (26 mai 2020) : 483–500. http://dx.doi.org/10.1515/zna-2020-0056.

Texte intégral
Résumé :
AbstractScattering theory is a standard tool for the description of transport phenomena in mesoscopic systems. Here, we provide a detailed derivation of this method for nano-scale conductors that are driven by oscillating electric or magnetic fields. Our approach is based on an extension of the conventional Lippmann–Schwinger formalism to systems with a periodically time-dependent Hamiltonian. As a key result, we obtain a systematic perturbation scheme for the Floquet scattering amplitudes that describes the transition of a transport carrier through a periodically driven sample. Within a general multi-terminal setup, we derive microscopic expressions for the mean values and time-integrated correlation functions, or zero-frequency noise, of matter and energy currents, thus recovering the results of earlier studies in a unifying framework. We show that this framework is inherently consistent with the first and the second law of thermodynamics and prove that the mean rate of entropy production vanishes only if all currents in the system are zero. As an application, we derive a generalized Green–Kubo relation, which makes it possible to express the response of any mean currents to small variations of temperature and chemical potential gradients in terms of time integrated correlation functions between properly chosen currents. Finally, we discuss potential topics for future studies and further reaching applications of the Floquet scattering approach to quantum transport in stochastic and quantum thermodynamics.
Styles APA, Harvard, Vancouver, ISO, etc.
3

Müller, Matthias M., Stefano Gherardini, Nicola Dalla Pozza et Filippo Caruso. « Noise sensing via stochastic quantum Zeno ». Physics Letters A 384, no 13 (mai 2020) : 126244. http://dx.doi.org/10.1016/j.physleta.2020.126244.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Müller, Matthias M., Stefano Gherardini et Filippo Caruso. « Quantum Zeno Dynamics Through Stochastic Protocols ». Annalen der Physik 529, no 9 (21 juillet 2017) : 1600206. http://dx.doi.org/10.1002/andp.201600206.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
5

Facchi, P., et S. Pascazio. « Quantum Zeno Phenomena : Pulsed versus Continuous Measurement ». Fortschritte der Physik 49, no 10-11 (octobre 2001) : 941. http://dx.doi.org/10.1002/1521-3978(200110)49:10/11<941 ::aid-prop941>3.0.co;2-v.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
6

Gherardini, Stefano, Shamik Gupta, Francesco Saverio Cataliotti, Augusto Smerzi, Filippo Caruso et Stefano Ruffo. « Stochastic quantum Zeno by large deviation theory ». New Journal of Physics 18, no 1 (25 janvier 2016) : 013048. http://dx.doi.org/10.1088/1367-2630/18/1/013048.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
7

Power, W. L., et P. L. Knight. « Stochastic simulations of the quantum Zeno effect ». Physical Review A 53, no 2 (1 février 1996) : 1052–59. http://dx.doi.org/10.1103/physreva.53.1052.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
8

Chaudhari, Abhijit P., Shane P. Kelly, Riccardo J. Valencia-Tortora et Jamir Marino. « Zeno crossovers in the entanglement speed of spin chains with noisy impurities ». Journal of Statistical Mechanics : Theory and Experiment 2022, no 10 (1 octobre 2022) : 103101. http://dx.doi.org/10.1088/1742-5468/ac8e5d.

Texte intégral
Résumé :
Abstract We use a noisy signal with finite correlation time to drive a spin (dissipative impurity) in the quantum XY spin chain and calculate the dynamics of entanglement entropy (EE) of a bipartition of spins, for a stochastic quantum trajectory. We compute the noise averaged EE of a bipartition of spins and observe that its speed of spreading decreases at strong dissipation, as a result of the Zeno effect. We recover the Zeno crossover and show that noise averaged EE can be used as a proxy for the heating and Zeno regimes. Upon increasing the correlation time of the noise, the location of the Zeno crossover shifts at stronger dissipation, extending the heating regime.
Styles APA, Harvard, Vancouver, ISO, etc.
9

Biella, Alberto, et Marco Schiró. « Many-Body Quantum Zeno Effect and Measurement-Induced Subradiance Transition ». Quantum 5 (19 août 2021) : 528. http://dx.doi.org/10.22331/q-2021-08-19-528.

Texte intégral
Résumé :
It is well known that by repeatedly measuring a quantum system it is possible to completely freeze its dynamics into a well defined state, a signature of the quantum Zeno effect. Here we show that for a many-body system evolving under competing unitary evolution and variable-strength measurements the onset of the Zeno effect takes the form of a sharp phase transition. Using the Quantum Ising chain with continuous monitoring of the transverse magnetization as paradigmatic example we show that for weak measurements the entanglement produced by the unitary dynamics remains protected, and actually enhanced by the monitoring, while only above a certain threshold the system is sharply brought into an uncorrelated Zeno state. We show that this transition is invisible to the average dynamics, but encoded in the rare fluctuations of the stochastic measurement process, which we show to be perfectly captured by a non-Hermitian Hamiltonian which takes the form of a Quantum Ising model in an imaginary valued transverse field. We provide analytical results based on the fermionization of the non-Hermitian Hamiltonian in supports of our exact numerical calculations.
Styles APA, Harvard, Vancouver, ISO, etc.
10

Shushin, A. I. « The effect of measurements, randomly distributed in time, on quantum systems : stochastic quantum Zeno effect ». Journal of Physics A : Mathematical and Theoretical 44, no 5 (4 janvier 2011) : 055303. http://dx.doi.org/10.1088/1751-8113/44/5/055303.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.

Thèses sur le sujet "Stochastic quantum Zeno phenomena"

1

Gherardini, Stefano. « Noise as a resource - Probing and manipulating classical and quantum dynamical systems via stochastic measurements ». Doctoral thesis, 2018. http://hdl.handle.net/2158/1120060.

Texte intégral
Résumé :
In this thesis, common features from the theories of open quantum systems, estimation of state dynamics and statistical mechanics have been integrated in a comprehensive framework, with the aim to analyze and quantify the energetic and information contents that can be extracted from a dynamical system subject to the external environment. The latter is usually assumed to be deleterious for the feasibility of specic control tasks, since it can be responsible for uncontrolled time-dependent (and even discontinuous) changes of the system. However, if the effects of the random interaction with a noisy environment are properly modeled by the introduction of a given stochasticity within the dynamics of the system, then even noise contributions might be seen as control knobs. As a matter of fact, even a partial knowledge of the environment can allow to set the system in a dynamical condition in which the response is optimized by the presence of noise sources. In particular, we have investigated what kind of measurement devices can work better in noisy dynamical regimes and studied how to maximize the resultant information via the adoption of estimation algorithms. Moreover, we have shown the optimal interplay between quantum dynamics, environmental noise and complex network topology in maximizing the energy transport efficiency. Then, foundational scientic aspects, such as the occurrence of an ergodic property for the system-environment interaction modes of a randomly perturbed quantum system or the characterization of the stochastic quantum Zeno phenomena, have been analyzed by using the predictions of the large deviation theory. Finally, the energy cost in maintaining the system in the non-equilibrium regime due to the presence of the environment is evaluated by reconstructing the corresponding thermodynamics entropy production. In conclusion, the present thesis can constitute the basis for an effective resource theory of noise, which is given by properly engineering the interaction between a dynamical (quantum or classical) system and its external environment.
Styles APA, Harvard, Vancouver, ISO, etc.

Livres sur le sujet "Stochastic quantum Zeno phenomena"

1

V, Nazarov Yuli, et North Atlantic Treaty Organization. Scientific Affairs Division., dir. Quantum noise in mesoscopic physics. Dordrecht : Kluwer Academic Publishers, 2003.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

Nazarov, Yuli V. Quantum Noise in Mesoscopic Physics. Springer, 2012.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

Nazarov, Yuli V. Quantum Noise in Mesoscopic Physics. Springer, 2003.

Trouver le texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Nitzan, Abraham. Chemical Dynamics in Condensed Phases. Oxford University Press, 2006. http://dx.doi.org/10.1093/oso/9780198529798.001.0001.

Texte intégral
Résumé :
This text provides a uniform and consistent approach to diversified problems encountered in the study of dynamical processes in condensed phase molecular systems. Given the broad interdisciplinary aspect of this subject, the book focuses on three themes: coverage of needed background material, in-depth introduction of methodologies, and analysis of several key applications. The uniform approach and common language used in all discussions help to develop general understanding and insight on condensed phases chemical dynamics. The applications discussed are among the most fundamental processes that underlie physical, chemical and biological phenomena in complex systems. The first part of the book starts with a general review of basic mathematical and physical methods (Chapter 1) and a few introductory chapters on quantum dynamics (Chapter 2), interaction of radiation and matter (Chapter 3) and basic properties of solids (chapter 4) and liquids (Chapter 5). In the second part the text embarks on a broad coverage of the main methodological approaches. The central role of classical and quantum time correlation functions is emphasized in Chapter 6. The presentation of dynamical phenomena in complex systems as stochastic processes is discussed in Chapters 7 and 8. The basic theory of quantum relaxation phenomena is developed in Chapter 9, and carried on in Chapter 10 which introduces the density operator, its quantum evolution in Liouville space, and the concept of reduced equation of motions. The methodological part concludes with a discussion of linear response theory in Chapter 11, and of the spin-boson model in chapter 12. The third part of the book applies the methodologies introduced earlier to several fundamental processes that underlie much of the dynamical behaviour of condensed phase molecular systems. Vibrational relaxation and vibrational energy transfer (Chapter 13), Barrier crossing and diffusion controlled reactions (Chapter 14), solvation dynamics (Chapter 15), electron transfer in bulk solvents (Chapter 16) and at electrodes/electrolyte and metal/molecule/metal junctions (Chapter 17), and several processes pertaining to molecular spectroscopy in condensed phases (Chapter 18) are the main subjects discussed in this part.
Styles APA, Harvard, Vancouver, ISO, etc.

Chapitres de livres sur le sujet "Stochastic quantum Zeno phenomena"

1

Tanatar, B., E. Kececioglu et M. C. Yalabik. « Memory Effects in Stochastic Ratchets ». Dans Quantum Mesoscopic Phenomena and Mesoscopic Devices in Microelectronics, 251–56. Dordrecht : Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4327-1_16.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

ZINN-JUSTIN, JEAN. « Stochastic Differential Equations : Langevin, Fokker–Planck Equations ». Dans Quantum Field Theory and Critical Phenomena, 60–82. Oxford University Press, 2002. http://dx.doi.org/10.1093/acprof:oso/9780198509233.003.0004.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

ZINN-JUSTIN, JEAN. « St And Brs Symmetries, Stochastic Field Equations ». Dans Quantum Field Theory and Critical Phenomena, 396–418. Oxford University Press, 2002. http://dx.doi.org/10.1093/acprof:oso/9780198509233.003.0016.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Zinn-Justin, Jean. « Stochastic differential equations : Langevin, Fokker–Planck (FP) equations ». Dans Quantum Field Theory and Critical Phenomena, 831–56. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834625.003.0034.

Texte intégral
Résumé :
This chapter is devoted to the study of Langevin equations, first order in time differential equations, which depend on a random noise, and which belong to a class of stochastic differential equations that describe diffusion processes, or random motion. From a Langevin equation, a Fokker–Planck (FP) equation for the probability distribution of the solutions, at given time, of the Langevin equation can be derived. It is shown that observables averaged over the noise can also be calculated from path integrals, whose integrands define automatically positive measures. The path integrals involve dynamic actions that have automatically a Becchi–Rouet–Stora–Tyutin (BRST) symmetry and, when the driving force derives from a potential, exhibit the simplest form of supersymmetry. In some cases, like Brownian motion on Riemannian manifolds, difficulties appear in the precise definition of stochastic equations, quite similar to the quantization problem encountered in quantum mechanics (QM). Time discretization provides one possible solution to the problem.
Styles APA, Harvard, Vancouver, ISO, etc.
5

Zinn-Justin, Jean. « Degenerate classical minima and instantons ». Dans Quantum Field Theory and Critical Phenomena, 942–59. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834625.003.0039.

Texte intégral
Résumé :
Instantons play an important role in the following situation: quantum theories corresponding to classical actions that have non-continuously connected degenerate minima. The simplest examples are provided by one-dimensional quantum systems with symmetries and potentials with non-symmetric minima. Classically, the states of minimum energy correspond to a particle sitting at any of the minima of the potential. The position of the particle breaks (spontaneously) the symmetry of the system. By contrast, in quantum mechanics (QM), the modulus of the ground-state wave function is large near all the minima of the potential, as a consequence of barrier penetration effects. Two typical examples illustrate this phenomenon: the double-well potential, and the cosine potential, whose periodic structure is closer to field theory examples. In the context of stochastic dynamics, instantons are related to Arrhenius law. The proof of the existence of instantons relies on an inequality related to supersymmetric structures, and which generalizes to some field theory examples. Again, the presence of instantons again indicates that the classical minima are connected by quantum tunnelling, and that the symmetry between them is not spontaneously broken. Examples of such a situation are provided, in two dimensions, by the charge conjugation parity (CP) (N − 1) models and, in four dimensions, by SU(2) gauge theories.
Styles APA, Harvard, Vancouver, ISO, etc.
6

Zinn-Justin, Jean. « Langevin field equations : Properties and renormalization ». Dans Quantum Field Theory and Critical Phenomena, 857–74. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834625.003.0035.

Texte intégral
Résumé :
Langevin equations for fields have been proposed to describe the dynamics of critical phenomena, or as an alternative method of quantization, which could be useful in cases where ordinary methods lead to difficulties, like in gauge theories. Some of their general properties will be described here. For a number of problems, in particular related to perturbation theory, it is more convenient to work with an action and a field integral than with the equation directly, because standard methods of quantum field theory (QFT) then become available. For this purpose, one can associate a field integral representation, involving a dynamic action to the Langevin equation. The dynamic action can be interpreted as generated by the Langevin equation, considered as a constraint equation. Quite generally, the integral representation of constraint equations, including stochastic equations, leads to an action that has a Slavnov–Taylor (ST) symmetry and, in a different form, has an anticommuting type Becchi–Rouet–Stora–Tyutin (BRST) symmetry, a symmetry that involves anticommuting parameters. This symmetry has no geometric origin, but is merely a consequence of associating a specific form of integral representations to the constraint equations. This symmetry is used in a number of different examples to prove the renormalizability of non-Abelian gauge theories, or to prove the geometric stability of models defined on homogeneous spaces under renormalization. In this chapter, it is used to prove Ward-Takahashi (WT) identities, and to determine how the Langevin equation renormalizes.
Styles APA, Harvard, Vancouver, ISO, etc.
7

Epstein, Irving R., et John A. Pojman. « Delays and Differential Delay Equations ». Dans An Introduction to Nonlinear Chemical Dynamics. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195096705.003.0016.

Texte intégral
Résumé :
Mathematically speaking, the most important tools used by the chemical kineticist to study chemical reactions like the ones we have been considering are sets of coupled, first-order, ordinary differential equations that describe the changes in time of the concentrations of species in the system, that is, the rate laws derived from the Law of Mass Action. In order to obtain equations of this type, one must make a number of key assumptions, some of which are usually explicit, others more hidden. We have treated only isothermal systems, thereby obtaining polynomial rate laws instead of the transcendental expressions that would result if the temperature were taken as a variable, a step that would be necessary if we were to consider thermochemical oscillators (Gray and Scott, 1990), for example, combustion reactions at metal surfaces. What is perhaps less obvious is that our equations constitute an average over quantum mechanical microstates, allowing us to employ a relatively small number of bulk concentrations as our dependent variables, rather than having to keep track of the populations of different states that react at different rates. Our treatment ignores fluctuations, so that we may utilize deterministic equations rather than a stochastic or a master equation formulation (Gardiner, 1990). Whenever we employ ordinary differential equations, we are making the approximation that the medium is well mixed, with all species uniformly distributed; any spatial gradients (and we see in several other chapters that these can play a key role) require the inclusion of diffusion terms and the use of partial differential equations. All of these assumptions or approximations are well known, and in all cases chemists have more elaborate techniques at their disposal for treating these effects more exactly, should that be desirable. Another, less widely appreciated idealization in chemical kinetics is that phenomena take place instantaneously—that a change in [A] at time t generates a change in [B] time t and not at some later time t + τ. On a microscopic level, it is clear that this state of affairs cannot hold.
Styles APA, Harvard, Vancouver, ISO, etc.

Actes de conférences sur le sujet "Stochastic quantum Zeno phenomena"

1

Pascazio, Saverio. « Quantum Zeno phenomena ». Dans First International Workshop of Research Center for Optics on Classical and Quantum Interference, sous la direction de Jan Perina, Miroslav Hrabovsky et Jaromir Krepelka. SPIE, 2002. http://dx.doi.org/10.1117/12.475884.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

FACCHI, P., et S. PASCAZIO. « UNSTABLE SYSTEMS AND QUANTUM ZENO PHENOMENA IN QUANTUM FIELD THEORY ». Dans Proceedings of the Japan-Italy Joint Workshop on Quantum Open Systems, Quantum Chaos and Quantum Measurement. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704412_0013.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

Liu, Fengyu, et Yanne K. Chembo. « Stochastic and quantum phenomena in microcombs ». Dans 2022 IEEE Photonics Conference (IPC). IEEE, 2022. http://dx.doi.org/10.1109/ipc53466.2022.9975523.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Meyers, Ronald E., et Keith S. Deacon. « Decomposition method for solving stochastic nonlinear equations of quantum phenomena ». Dans Optics & Photonics 2005, sous la direction de Ronald E. Meyers et Yanhua Shih. SPIE, 2005. http://dx.doi.org/10.1117/12.620153.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
5

Khoshnoud, Farbod, Houman Owhadi et Clarence W. de Silva. « Stochastic Simulation of a Casimir Oscillator ». Dans ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39746.

Texte intégral
Résumé :
Stochastic simulation of a Casimir Oscillator is presented in this paper. This oscillator is composed of a flat boundary of semiconducting oscillator parallel to a fixed plate separated by vacuum. In this system the oscillating surface is attracted to the fixed plate by the Casimir effect, due to quantum fluctuations in the zero point electromagnetic field. Motion of the oscillating boundary is opposed by a spring. The stored potential energy in the spring is converted into kinetic energy when the spring force exceeds the Casimir force, which generates an oscillatory motion of the moving plate. Casimir Oscillators are used as micro-mechanical switches, sensors and actuators. In the present paper, a stochastic simulation of a Casimir oscillator is presented for the first time. In this simulation, Stochastic Variational Integrators using a Langevin equation, which describes Brownian motion, is considered. Formulations for Symplectic Euler, Constrained Symplectic Euler, Stormer-Verlet and RATTLE integrators are obtained and the Symplectic Euler case is solved numerically. When the moving parts in a micro/nano system travel in the vicinity of 10 nanometers to 1 micrometer range relative to other parts of the system, the Casimir phenomenon is in effect and should be considered in analysis and design of such system. The simulation in this paper considers modeling such uncertainties as friction, effect of surface roughness on the Casimir force, and change in environmental conditions such as ambient temperature. In this manner the paper explores a realistic model of the Casimir Oscillator. Furthermore, the presented study of this system provides a deeper understanding of the nature of the Casimir force.
Styles APA, Harvard, Vancouver, ISO, etc.
6

Kumar, Ashutosh. « Quantum Computation for End-to-End Seismic Data Processing with Its Computational Advantages and Economic Sustainability ». Dans ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211843-ms.

Texte intégral
Résumé :
Abstract Mathematical and computational challenges involved in seismic data processing presents an opportunity for early adoption of quantum computation methods for end-to-end seismic data processing. Existing methods of seismic data processing involve processes with exponential complexities that result in approximations as well as conversion of some of the continuous phenomena into a stochastic one. In the classical computation methods, the mentioned approximations and assumptions enable us to obtain acceptable results in commercially viable time. This paper proposes alternatives of the classical computations that exist in the quantum computation ecosystem along with the computational advantages it holds. The paper also presents potential contributions of the petroleum industry towards sustaining the quantum computation technologies. Fundamentally seismic data processing involves solutions for systems of linear equations and its derivatives. Quantum computation ecosystem holds efficient solutions for systems of linear equations. In the frequency domain, Finite-Difference modelling reduces seismic-wave equations to systems of linear equations. In the classical computational setup the seismic acquisition involves treatment of the recorded waves as rays and has limited summation provision for recreating the natural reflection or refraction phenomena that is continuous instead of being a stochastic process. The algorithms in the quantum ecosystem allow us to consider summation of signals from all possible paths between the source and the receiver, by amplitude-probability. In addition to the systems of linear equations and their solution with corresponding methods in the quantum ecosystem the fourier transformation and partial differential equations enable us to decompose the waves and apply the physics equation to obtain the desired objective. Quantum-algorithms facilitate exponential speed-up in seismic data processing. The PDE-constrained optimization inverts subsurface P-wave velocity. While going through the seismic data processing steps it is found that the fourier transformation algorithms are derived as a decomposition of the diagonal matrix. The key difference between the fast fourier transform and the quantum fourier transform is that the quantum fourier transformation is used as the building block of several quantum algorithms. Seismic inversion involves laws of physics and calculation that are guided by the ordinary differential equations. In the quantum computation ecosystem these algorithms for linear ordinary differential equations for linear partial differential equations have the complexity of (1/e), where ‘e’ is the tolerance. The insights brought by successful implementation of end-to-end seismic data processing with algorithms in the quantum computation domain enables us to drill most optimally located wells and hence facilitate cost saving. Even with a reduction of 10% in the total number of wells that we drill, we can possibly fund development of one quantum computer hence ensuring economic sustainability of the technology. The novelty of the presented paper lies in the comparative analysis of the classical methods with its counterparts in the quantum ecosystem. It explains the technological and economical aspects of the technology such that extensive knowledge of quantum technology is not compulsory for grasping its contents.
Styles APA, Harvard, Vancouver, ISO, etc.

Rapports d'organisations sur le sujet "Stochastic quantum Zeno phenomena"

1

Соловйов, Володимир Миколайович, et D. N. Chabanenko. Financial crisis phenomena : analysis, simulation and prediction. Econophysic’s approach. Гумбольдт-Клуб Україна, novembre 2009. http://dx.doi.org/10.31812/0564/1138.

Texte intégral
Résumé :
With the beginning of the global financial crisis, which attracts the attention of the international community, the inability of existing methods to predict the events became obvious. Creation, testing, adaptation of the models to the concrete financial market segments for the purpose of monitoring, early prediction, prevention and notification of financial crises is gaining currency nowadays. Econophysics is an interdisciplinary research field, applying theories and methods originally developed by physicists in order to solve problems in economics, usually those including uncertainty or stochastic processes and nonlinear dynamics. Its application to the study of financial markets has also been termed statistical finance referring to its roots in statistical physics. The new paradigm of relativistic quantum econophysics is proposed.
Styles APA, Harvard, Vancouver, ISO, etc.
2

Perdigão, Rui A. P. Earth System Dynamic Intelligence with Quantum Technologies : Seeing the “Invisible”, Predicting the “Unpredictable” in a Critically Changing World. Meteoceanics, octobre 2021. http://dx.doi.org/10.46337/211028.

Texte intégral
Résumé :
We hereby embark on a frontier journey articulating two of our flagship programs – “Earth System Dynamic Intelligence” and “Quantum Information Technologies in the Earth Sciences” – to take the pulse of our planet and discern its manifold complexity in a critically changing world. Going beyond the traditional stochastic-dynamic, information-theoretic, artificial intelligence, mechanistic and hybrid approaches to information and complexity, the underlying fundamental science ignites disruptive developments empowering complex problem solving across frontier natural, social and technical geosciences. Taking aim at complex multiscale planetary problems, the roles of our flagships are put into evidence in different contexts, ranging from I) Interdisciplinary analytics, model design and dynamic prediction of hydro-climatic and broader geophysical criticalities and extremes across multiple spatiotemporal scales; to II) Sensing the pulse of our planet and detecting early warning signs of geophysical phenomena from Space with our Meteoceanics QITES Constellation, at the interface between our latest developments in non-linear dynamics and emerging quantum technologies.
Styles APA, Harvard, Vancouver, ISO, etc.
3

Perdigão, Rui A. P. New Horizons of Predictability in Complex Dynamical Systems : From Fundamental Physics to Climate and Society. Meteoceanics, octobre 2021. http://dx.doi.org/10.46337/211021.

Texte intégral
Résumé :
Discerning the dynamics of complex systems in a mathematically rigorous and physically consistent manner is as fascinating as intimidating of a challenge, stirring deeply and intrinsically with the most fundamental Physics, while at the same time percolating through the deepest meanders of quotidian life. The socio-natural coevolution in climate dynamics is an example of that, exhibiting a striking articulation between governing principles and free will, in a stochastic-dynamic resonance that goes way beyond a reductionist dichotomy between cosmos and chaos. Subjacent to the conceptual and operational interdisciplinarity of that challenge, lies the simple formal elegance of a lingua franca for communication with Nature. This emerges from the innermost mathematical core of the Physics of Coevolutionary Complex Systems, articulating the wealth of insights and flavours from frontier natural, social and technical sciences in a coherent, integrated manner. Communicating thus with Nature, we equip ourselves with formal tools to better appreciate and discern complexity, by deciphering a synergistic codex underlying its emergence and dynamics. Thereby opening new pathways to see the “invisible” and predict the “unpredictable” – including relative to emergent non-recurrent phenomena such as irreversible transformations and extreme geophysical events in a changing climate. Frontier advances will be shared pertaining a dynamic that translates not only the formal, aesthetical and functional beauty of the Physics of Coevolutionary Complex Systems, but also enables and capacitates the analysis, modelling and decision support in crucial matters for the environment and society. By taking our emerging Physics in an optic of operational empowerment, some of our pioneering advances will be addressed such as the intelligence system Earth System Dynamic Intelligence and the Meteoceanics QITES Constellation, at the interface between frontier non-linear dynamics and emerging quantum technologies, to take the pulse of our planet, including in the detection and early warning of extreme geophysical events from Space.
Styles APA, Harvard, Vancouver, ISO, etc.
Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!

Vers la bibliographie