Results 31 to 40 of about 6,496,471 (236)

Floquet topological transitions in a driven one-dimensional topological insulator [PDF]

open access: yes, 2015
The Su-Schrieffer-Heeger model of polyacetylene is a paradigmatic Hamiltonian exhibiting non-trivial edge states. By using Floquet theory we study how the spectrum of this one-dimensional topological insulator is affected by a time-dependent potential ...
Atala, M.   +2 more
core   +2 more sources

From quantum heat engines to laser cooling: Floquet theory beyond the Born–Markov approximation [PDF]

open access: yesNew Journal of Physics, 2017
We combine the formalisms of Floquet theory and full counting statistics with a Markovian embedding strategy to access the dynamics and thermodynamics of a periodically driven thermal machine beyond the conventional Born–Markov approximation. The working
S. Restrepo   +3 more
semanticscholar   +1 more source

Scattering theory for Floquet-Bloch states [PDF]

open access: yesPhysical Review A, 2015
Motivated by recent experimental implementations of artificial gauge fields for gases of cold atoms, we study the scattering properties of particles that are subjected to time-periodic Hamiltonians. Making use of Floquet theory, we focus on translationally invariant situations in which the single-particle dynamics can be described in terms of spatially
Bilitewski, Thomas, Cooper, Nigel R
openaire   +3 more sources

Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials [PDF]

open access: yes, 2016
Tuning and stabilising topological states, such as Weyl semimetals, Dirac semimetals, or topological insulators, is emerging as one of the major topics in materials science. Periodic driving of many-body systems offers a platform to design Floquet states
de Giovannini, Umberto   +4 more
core   +5 more sources

An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory

open access: yesIEEE Access, 2020
Paralleled DC-DC converters system normally is operated with current-sharing control to achieve equal current distribution among the converters connected in parallel.
Hong Li   +6 more
semanticscholar   +1 more source

Quasi-periodically driven quantum systems [PDF]

open access: yes, 2016
Floquet theory provides rigorous foundations for the theory of periodically driven quantum systems. In the case of non-periodic driving, however, the situation is not so well understood.
Mintert, Florian   +2 more
core   +3 more sources

Focused surface plasmon polaritons coherently couple to electronic states in above-threshold electron emission

open access: yesCommunications Physics, 2023
Floquet theory describes transient states driven by a light-matter interaction and could potentially be used to engineer the band structure and the topology of solid-state systems.
Pascal Dreher   +4 more
doaj   +1 more source

Validity of many-mode Floquet theory with commensurate frequencies [PDF]

open access: yesPhysical Review A, 2019
Many-mode Floquet theory [T.-S. Ho, S.-I. Chu, and J. V. Tietz, Chem. Phys. Lett., v. 96, 464 (1983)] is a technique for solving the time-dependent Schr\"odinger equation in the special case of multiple periodic fields, but its limitations are not well ...
A. Poertner, J. D. Martin
semanticscholar   +1 more source

Influence of classical resonances on chaotic tunnelling [PDF]

open access: yes, 2006
Dynamical tunnelling between symmetry-related stable modes is studied in the periodically driven pendulum. We present strong evidence that the tunnelling process is governed by nonlinear resonances that manifest within the regular phase-space islands on ...
A. J. Lichtenberg   +7 more
core   +4 more sources

Floquet prethermalization and Rabi oscillations in optically excited Hubbard clusters

open access: yesScientific Reports, 2021
We study the properties of Floquet prethermal states in two-dimensional Mott-insulating Hubbard clusters under continuous optical excitation. With exact-diagonalization simulations, we show that Floquet prethermal states emerge not only off resonance ...
Junichi Okamoto, Francesco Peronaci
doaj   +1 more source

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