Letteratura scientifica selezionata sul tema "Floquet formalism"
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Articoli di riviste sul tema "Floquet formalism"
KIM, SANG WOOK. "FLOQUET FORMALISM OF QUANTUM PUMPS". International Journal of Modern Physics B 18, n. 23n24 (10 ottobre 2004): 3071–93. http://dx.doi.org/10.1142/s0217979204026317.
Testo completoIvanov, Konstantin L., Kaustubh R. Mote, Matthias Ernst, Asif Equbal e Perunthiruthy K. Madhu. "Floquet theory in magnetic resonance: Formalism and applications". Progress in Nuclear Magnetic Resonance Spectroscopy 126-127 (ottobre 2021): 17–58. http://dx.doi.org/10.1016/j.pnmrs.2021.05.002.
Testo completoMartinez, D. F. "Floquet–Green function formalism for harmonically driven Hamiltonians". Journal of Physics A: Mathematical and General 36, n. 38 (9 settembre 2003): 9827–42. http://dx.doi.org/10.1088/0305-4470/36/38/302.
Testo completoLungu, Radu Paul, e Andrei Manolescu. "Many-Body Fermion Systems in the Floquet Formalism". Physica Scripta 62, n. 6 (1 dicembre 2000): 433–45. http://dx.doi.org/10.1238/physica.regular.062a00433.
Testo completoFILIP, By CLAUDIU, XENIA FILIP e DAN E. DEMCO and SIEGFRIED HAFNER. "Spin dynamics under magic angle spinning by Floquet formalism". Molecular Physics 92, n. 4 (novembre 1997): 757–72. http://dx.doi.org/10.1080/002689797170031.
Testo completoJooya, H. Z., e H. R. Sadeghpour. "Floquet formalism for multiphoton dynamics in superconducting quantum circuits". Journal of Physics: Conference Series 1412 (gennaio 2020): 092005. http://dx.doi.org/10.1088/1742-6596/1412/9/092005.
Testo completoBoender, G. J., A. A. de Koeijer e E. A. J. Fischer. "Derivation of a Floquet Formalism within a Natural Framework". Acta Biotheoretica 60, n. 3 (29 giugno 2012): 303–17. http://dx.doi.org/10.1007/s10441-012-9162-4.
Testo completoBauer, Andreas. "Topological error correcting processes from fixed-point path integrals". Quantum 8 (20 marzo 2024): 1288. http://dx.doi.org/10.22331/q-2024-03-20-1288.
Testo completoRodriguez-Vega, M., M. Lentz e B. Seradjeh. "Floquet perturbation theory: formalism and application to low-frequency limit". New Journal of Physics 20, n. 9 (24 settembre 2018): 093022. http://dx.doi.org/10.1088/1367-2630/aade37.
Testo completoLUNGU, RADU PAUL, e ANDREI MANOLESCU. "TWO-DIMENSIONAL ELECTRON SYSTEM IN ELECTROMAGNETIC RADIATION FIELD". International Journal of Modern Physics B 15, n. 32 (30 dicembre 2001): 4245–59. http://dx.doi.org/10.1142/s0217979201008007.
Testo completoTesi sul tema "Floquet formalism"
Atteia, Jonathan. "Topologie et transport électronique dans des systèmes de Dirac sous irradiation". Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0378/document.
Testo completoThis thesis presents a theoretical work done in the field of condensed matter physics, and in particular solid state physics. This field of physics aims at describing the behaviour of electrons in crystalline materials at very low temperature to observe effects characteristic of quantum physics at the mesoscopic scale.This thesis lies at the interface between two types of materials : graphene and topological insulators. Graphene is a monoatomic layer of carbon atoms arranged in a honeycomb lattice that presents a wide range of striking properties in optics, mechanics and electronics. Topological insulators are materials that are insulators in the bulk and conduct electricity at the edges. This characteristic originates from a topological property of the electrons in the bulk. Topology is a branch of mathematics that aims to describe objects globally retaining only characteristics invariant under smooth deformations. The edge states of topological insulators are robust to certain king of perturbations such as disorder created by impurities in the bulk. The link between these two topics is two-fold. On one hand, the first models of band topological insulators were formulated for graphene, by Haldane in 1988 and Kane and Mele in 2005, opening the way to the discovery of 2D and 3D topological insulators in materials with strong spin-orbit coupling. On the other hand, it was predicted that graphene, even without spin-orbit coupling, turns to a topological insulator under irradiation by an electromagnetic wave. In this thesis, we follow two directions in parallel : describe the topological properties on one hand, and the electronic transport properties on the other hand.First, we review the tight-binding model of graphene, and the effective model that describes low-energy electrons as massless Dirac fermions. We then introduce the Haldane model, a simple model defined on the honeycomb lattice that presents non-trivial bands characterised by a topological invariant, the Chern number. Due to this topological property, this model possesses a chiral edge state that propagates around the sample and a quantized Hall conductance. When graphene is irradiated by a laser with a frequency larger than the graphene bandwidth, it acquires a dynamical gap similar to the topological gap of the Haldane model. When the frequency is lowered, we show that topological transitions happens and that different edge states appear.The main work of this thesis is the study of electronic transport in irradiated graphene in a regime of experimentally achievable parameters. A graphene sheet is connected to two electrodes with a potential difference that generates a current. We compute the differential conductance of the sample according to Landauer-Büttiker formalism extended to periodically driven systems. Using this simple formalism, we are able to obtain the conductance as a function of the geometry of the sample and of several parameters such as the chemical potential, the frequency and the intensity of the electromagnetic wave.Another kind of topological insulator is the quantum spin Hall insulator. This type of phase possesses two edge states in which opposite spins propagate in opposite directions. The second work of this thesis concerns electronic transport through this irradiated edge state. We observe the apparition of a pumped current in the absence of a potential difference. We observe two regimes : a quantized adiabatic at low frequency, and a non-quantized linear response regime at high frequency. Compared to previous studies, we show an important effect originating from the presence of electrodes
Rodzinka, Tangui. "Amélioration de la séparation en impulsion dans les interféromètres atomiques : séquences cohérentes de diffraction de Bragg et accélération de Floquet". Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSES109.
Testo completoMy thesis work, carried out at LCAR, focuses on the development of atom interferometers exploiting Bose-Einstein condensates manipulated by optical lattices. I present various methods for creating interferometers with a large momentum separation between the two arms of the interferometer. A first approach is based on high-order diffraction, in the so-called quasi-Bragg regime. One chapter is dedicated to this description, highlighting the importance of non-resonant multiphoton transitions on interferometer signals. The next chapter describes an atom beam splitter scheme, based on a succession of pi pulses each transferring 2ℏk. We have thus demonstrated a new, particularly efficient acceleration regime thanks to a destructive interference phenomenon between the losses. This method has enabled us to produce an interferometer with a separation of 200 recoil momentum. Finally, the last chapter of my manuscript introduces a new technique exploiting the Floquet formalism, which generalizes previous atom beam splitters as well as those based on Bloch oscillations. To optimally prepare the Floquet states transported by the optical lattice, we implemented optimal control techniques. This approach has enabled us to experimentally demonstrate interferometers with a momentum separation of 600ℏk, with a visibility of 20%. This result represents the largest momentum separation achieved in an interferometer. The beam splitter developed in this thesis can potentially improve fine structure constant measurements and the sensitivity of inertial sensors exploiting atomic interferometry techniques. In addition, these separators pave the way for interferometers with very high spatial separation. These interferometers are attracting growing interest in fundamental physics, offering various possibilities for testing general relativity, matter neutrality and dark matter models. The longer-term aim of the experiment I've been working on will be to test the neutrality of the atom using a new method based on the Aharonov-Bohm phase. We expect an improvement of several orders of magnitude over current limits
Leclerc, Arnaud. "Élaboration d’un propagateur global pour l’équation de Schrödinger & Application à la photodynamique". Thesis, Besançon, 2012. http://www.theses.fr/2012BESA2002/document.
Testo completoThe Constrained Adiabatic Trajectory Method (CATM) allows us to compute global solutions of the time-dependent Schrödinger equation using the Floquet formalism and Fourier decomposition. The dynamical problem is thustransformed into a “static” problem, in the sense that the time will be included in an extended Hilbert space. Thisapproach requires that suitable constraints are applied to the initial conditions for the relevant Floquet eigenstate.The CATM is well suited to the description of systems driven by Hamiltonians with explicit and complicated timevariations. This method does not have cumulative errors and the only error sources are the non-completeness ofthe finite molecular and temporal basis sets used, and the imperfection of the time-dependent absorbing potentialwhich is essential to impose the correct initial conditions. A general form is derived for the absorbing potential,which can reproduce any dispersed boundary conditions. Arguments on adiabatic tracking in the case of nonhermitianHamiltonians are also presented. We insist on the role of geometric phase factors. The methods areapplied to atomic and molecular systems illuminated by intense laser pulses, in connection with molecular controlproblems. We study several examples : two or three-level atomic models, hydrogen molecular ion, cold sodiummolecules
Leclerc, Arnaud. "Élaboration d'un propagateur global pour l'équation de Schrödinger & Application à la photodynamique". Phd thesis, Université de Franche-Comté, 2012. http://tel.archives-ouvertes.fr/tel-00806956.
Testo completoCapitoli di libri sul tema "Floquet formalism"
ZAX, D. B., G. GOELMAN, D. ABRAMOVICH e S. VEGA. "Floquet Formalism and Broadband Excitation". In Advances in Magnetic Resonance, 219–40. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-12-025514-6.50016-2.
Testo completoEichler, Alexander, e Oded Zilberberg. "The Harmonic Resonator". In Classical and Quantum Parametric Phenomena, 5–19. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780192862709.003.0002.
Testo completoAtti di convegni sul tema "Floquet formalism"
Huy, Kien Phan, Alain Morand e Pierre Benech. "Study of the microgear resonators using the Floquet-Bloch formalism". In Integrated Optoelectronic Devices 2005, a cura di Marek Osinski, Fritz Henneberger e Hiroshi Amano. SPIE, 2005. http://dx.doi.org/10.1117/12.588942.
Testo completoMalinovskaya, Svetlana A., e Aneesh Ramaswamy. "Transparency in a two-level system using state phase control". In Frontiers in Optics. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/fio.2022.jtu4b.72.
Testo completoKitio Kwuimy, C. A., A. S. Das e C. Nataraj. "Floquet Stability Analysis of a Rotor Supported on Rolling Element Bearings With Clearance and Static Load". In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-13695.
Testo completoPhani, A. Srikantha, e Norman A. Fleck. "Elastic Boundary Layers in Two-Dimensional Isotropic Lattices". In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35234.
Testo completoAlesia Herasimenka, Miss, Ariadna Farrés e Lamberto Dell'Elce. "Station-keeping under conical constraint on the control force". In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-082.
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