Results 11 to 20 of about 4,510 (212)

Floquet-Landau-Zener interferometry: Usefulness of the Floquet theory in pulse-laser-driven systems

open access: yesPhysical Review Research, 2022
We develop the Landau-Zener transfer matrix theory for the instantaneous Floquet states (IFSs) for quantum systems driven by a strong pulse laser. Applying this theory to the pulse excitation probability in two-level quantum systems, we show unexpectedly
Tatsuhiko N. Ikeda   +2 more
doaj   +4 more sources

Effective response theory for Floquet topological systems [PDF]

open access: yesPhysical Review Research, 2021
We present an effective field theory approach to the topological response of Floquet systems with symmetry group G. This is achieved by introducing a background G gauge field in the Schwinger-Keldysh formalism, which is suitable for far from equilibrium ...
Paolo Glorioso   +2 more
doaj   +3 more sources

Geometric Floquet Theory

open access: yesPhysical Review X
We derive Floquet theory from quantum geometry. We identify quasienergy folding as a consequence of a broken gauge group of the adiabatic gauge potential U(1)↦Z.
Paul M. Schindler, Marin Bukov
doaj   +6 more sources

MULTITIME FLOQUET THEORY

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2013
This paper is a contribution to the Floquet ideas applied for multitime overdetermined linear first order PDE dynamical systems with multi- periodic coefficients.
Constantin Udrişte
doaj   +2 more sources

Floquet perturbation theory: formalism and application to low-frequency limit [PDF]

open access: yesNew Journal of Physics, 2018
We develop a low-frequency perturbation theory in the extended Floquet Hilbert space of a periodically driven quantum systems, which puts the high- and low-frequency approximations to the Floquet theory on the same footing.
M Rodriguez-Vega, M Lentz, B Seradjeh
doaj   +4 more sources

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
core   +6 more sources

Dynamical symmetry indicators for Floquet crystals [PDF]

open access: yesNature Communications, 2021
A general theory for Floquet topology applicable to all crystalline symmetry groups is lacking. Here, the authors propose such a theory for noninteracting Floquet crystals and predict an inversion-protected Floquet higher-order topological phase with ...
Jiabin Yu, Rui-Xing Zhang, Zhi-Da Song
doaj   +2 more sources

Fractional Floquet theory

open access: yesChaos, Solitons & Fractals, 2023
A fractional generalization of the Floquet theorem is suggested for fractional Schrödinger equations (FTSE)s with the time-dependent periodic Hamiltonians. The obtained result, called the fractional Floquet theorem (fFT), is formulated in the form of the Mittag-Leffler function, which is considered as the eigenfunction of the Caputo fractional ...
Iomin, A.
openaire   +5 more sources

Floquet-Bloch valleytronics [PDF]

open access: yesNature Communications
Upon time-periodic driving of electrons using electromagnetic fields, the emergence of Floquet-Bloch states enables the creation and control of exotic quantum phases.
Sotirios Fragkos   +8 more
doaj   +2 more sources

Unified light-matter Floquet theory and its application to quantum communication

open access: yesPhysical Review Research
Periodically driven quantum systems can exhibit a plethora of intriguing nonequilibrium phenomena that can be analyzed using Floquet theory. Naturally, Floquet theory is employed to describe the dynamics of atoms interacting with intense laser fields ...
Georg Engelhardt   +2 more
doaj   +2 more sources

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