Results 1 to 10 of about 6,642,686 (171)

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

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   +3 more sources

Geometric Floquet Theory [PDF]

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   +3 more sources

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

open access: yesPhysical Review Research, 2022
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

Integrable Floquet systems related to logarithmic conformal field theory [PDF]

open access: yesSciPost Physics, 2023
We study an integrable Floquet quantum system related to lattice statistical systems in the universality class of dense polymers. These systems are described by a particular non-unitary representation of the Temperley-Lieb algebra.
Vsevolod I. Yashin, Denis V. Kurlov, Aleksey K. Fedorov, Vladimir Gritsev
doaj   +2 more sources

Effective response theory for Floquet topological systems

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   +2 more sources

Floquet engineering the band structure of materials with optimal control theory [PDF]

open access: yesPhysical Review Research, 2022
We demonstrate that the electronic structure of a material can be deformed into Floquet pseudobands with arbitrarily tailored shapes. We achieve this goal with a combination of quantum optimal control theory and Floquet engineering.
Alberto Castro   +4 more
doaj   +2 more sources

The Floquet Theory of the Two-Level System Revisited [PDF]

open access: yesZeitschrift Fur Naturforschung - Section A Journal of Physical Sciences, 2018
In this article, we reconsider the periodically driven two-level system especially the Rabi problem with linear polarisation. The Floquet theory of this problem can be reduced to its classical limit, i.e. to the investigation of periodic solutions of the
Heinz-Jürgen Schmidt
exaly   +2 more sources

Electron Transfer at Molecule–Metal Interfaces under Floquet Engineering: Rate Constant and Floquet Marcus Theory [PDF]

open access: yesACS Physical Chemistry Au, 2023
Electron transfer (ET) at molecule–metal or molecule–semiconductor interfaces is a fundamental reaction that underlies all electrochemical processes and substrate-mediated surface photochemistry.
Yu Wang, Wenjie Dou
doaj   +2 more sources

Photonic Time Crystals and Time-Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices. [PDF]

open access: yesAdv Sci (Weinh)
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Patel RK   +3 more
europepmc   +2 more sources

Floquet engineering with quantum optimal control theory

open access: yesNew Journal of Physics, 2023
Floquet engineering consists in the modification of physical systems by the application of periodic time-dependent perturbations. The search for the shape of the periodic perturbation that best modifies the properties of a system in order to achieve some
Alberto Castro   +4 more
doaj   +2 more sources

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