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Periodically driven quantum systems

WebApr 16, 2014 · Periodically-driven quantum systems: Effective Hamiltonians and engineered gauge fields. Driving a quantum system periodically in time can profoundly alter its long … WebJan 11, 2024 · We will review the progress on quantum control in open and periodically driven systems. Special attention will be paid to the distinguished role played by the …

Topological characterization of periodically driven …

WebOct 22, 2024 · In this work, we theoretically investigate basic properties of periodically-driven open quantum systems with the Maxwell–Bloch equation [ 51, 52 ], which may be the simplest model for driven open quantum systems, and provide an insight into the realization of Floquet states in such systems, addressing the following open questions: which kind of … WebOct 16, 2024 · A major goal of quantum condensed-matter physics is to control the electronic and atomic states of many particles. One of the most exciting emerging means for achieving such control is a periodic drive, such as a laser or time-varying magnetic field. putin\u0027s plan to attack japan https://lomacotordental.com

Physics - Turning a Quantum Computer into a Time Crystal

WebSep 1, 2024 · a Periodically driven unitary dynamics described by an operator U. While our nonintegrable system thermalizes for local observables at infinite times, we here discuss the phase transitions ... WebWe thus extend the notion of prethermal dynamics, observed in the high-frequency limit of periodically-driven systems, to a nonsymplectic setting. We analyze a new class of time-periodic dynamics in interacting chaotic classical spin systems, whose equations of motion are conservative (phase-space volume preserving) yet possess no symplectic ... WebThere has recently been much theoretical and experimental interest in quantum systems that are driven periodically in time, known as Floquet systems [1-2]. In these cases, fast oscillations can be used to alter the underlying band structure of the static (or time-averaged) system, generating exotic topological phases through a form of band ... putin\u0027s nukes

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Periodically driven quantum systems

Floquet–Magnus theory and generic transient dynamics in periodically …

WebAbstract: This dissertation presents a self-contained study of periodically-driven quantum systems. Following a brief introduction to Floquet theory, we introduce the inverse-frequency expansion, variants of which include the Floquet-Magnus, van … http://quantum-dynamics.phys.uni-sofia.bg/floquet_general/

Periodically driven quantum systems

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WebHere, we derive a general description for nonequilibrium steady states (NESSs) in periodically driven dissipative systems by focusing on systems under high-frequency drive and time-independent Lindblad-type dissipation. WebAug 29, 2024 · Periodically driven “Floquet” systems are nonequilibrium systems whose time translation symmetry can give rise to a rich dynamical phase structure. In the …

WebOct 29, 2010 · In this paper, we show that the Floquet operators of periodically driven systems can be divided into topologically distinct (homotopy) classes, and give a simple physical interpretation of this classification in terms of the spectra of Floquet operators. WebTopological properties of physical systems can lead to robust behaviors that are insensitive to microscopic details. Such topologically robust phenomena are not limited to static …

WebJul 1, 2003 · For a periodically driven quantum system, an effective time-independent Hamiltonian is derived with an eigen-energy spectrum, which in the regime of large driving frequencies approximates the quasienergies of the corresponding Floquet Hamiltonian. The effective Hamiltonian is evaluated for the case of optical lattice models in the tight … WebSep 23, 2015 · If we consider a periodically driven quantum system of many particles, then the presence of interactions will influence the high-frequency expansion in two different …

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WebFeb 21, 2024 · dynamics in which the quantum system is subject to a periodic driving. In recent years there has been an uprising interest for periodically driven closed quantum systems, with special emphasis on the existence of an asymptotic time-periodic steady state and the conditions under which it shows thermal properties [27–48]. The asymptotic … putin\u0027s parkinson\u0027s videoWebMar 13, 2024 · Periodically driven closed quantum many-body systems have become an active. field of research nowadays. The drive frequency, in such systems, is. an important parameter since it can be tuned to realize several interesting. phenomena that have no analog in equilibrium systems. A systematic theoretical putin\u0027s russia anna politkovskayaWebApr 24, 2024 · We summarize recent progress that has established generalizations of these ideas to periodically driven, or Floquet, closed quantum systems. This has resulted in the discovery of entirely new ... putincoin kaufen