نتایج جستجو برای: تئوری floquet

تعداد نتایج: 17441  

2016
Andrew C. Potter Takahiro Morimoto Ashvin Vishwanath

Periodic driving of a quantum system can enable new topological phases with no analog in static systems. In this paper, we systematically classify one-dimensional topological and symmetry-protected topological (SPT) phases in interacting fermionic and bosonic quantum systems subject to periodic driving, which we dub Floquet SPTs (FSPTs). For physical realizations of interacting FSPTs, many-body...

Journal: :Physical review letters 2011
Zhenghao Gu H A Fertig Daniel P Arovas Assa Auerbach

Graphene subject to a spatially uniform, circularly polarized electric field supports a Floquet spectrum with properties akin to those of a topological insulator. The transport properties of this system, however, are complicated by the nonequilibrium occupations of the Floquet states. We address this by considering transport in a two-terminal ribbon geometry for which the leads have well-define...

Journal: :Circuits and Systems 2011
Stefano Perticaroli Nikend Luli Fabrizio Palma

The paper presents an approximated and compact derivation of the mutual displacement of Floquet eigenvectors in a class of LC tank oscillators with time varying bias. In particular it refers to parallel tank oscillators of which the energy restoring can be modeled through a train of current pulses. Since Floquet eigenvectors are acknowledged to give a correct decomposition of noise perturbation...

Journal: :International Journal of Modern Physics B 2004

Journal: :Physical Review Letters 2019

Journal: :Physical review research 2022

We develop the Landau-Zener transfer matrix theory for instantaneous Floquet states (IFSs) quantum systems driven by strong pulse lasers. Applying this to excitation probability in two-level systems, we show unexpectedly good quantitative agreements few-cycle pulses. This approach enables us qualitatively understand probability's peculiar behaviors as path interference between IFSs. also study ...

2017
Filippo Cardano Alessio D'Errico Alexandre Dauphin Maria Maffei Bruno Piccirillo Corrado de Lisio Giulio De Filippis Vittorio Cataudella Enrico Santamato Lorenzo Marrucci Maciej Lewenstein Pietro Massignan

Topological insulators are fascinating states of matter exhibiting protected edge states and robust quantized features in their bulk. Here we propose and validate experimentally a method to detect topological properties in the bulk of one-dimensional chiral systems. We first introduce the mean chiral displacement, an observable that rapidly approaches a value proportional to the Zak phase durin...

Journal: :Physical review letters 2017
N Y Yao A C Potter I-D Potirniche A Vishwanath

Despite being forbidden in equilibrium, spontaneous breaking of time translation symmetry can occur in periodically driven, Floquet systems with discrete time-translation symmetry. The period of the resulting discrete time crystal is quantized to an integer multiple of the drive period, arising from a combination of collective synchronization and many body localization. Here, we consider a simp...

2017
Yunhua Wang Yulan Liu Biao Wang

Periodically driven nontrivial quantum states open another door to engineer topological phases in solid systems by light. Here we show, based on the Floquet-Bloch theory, that the on-resonant linearly and circularly polarized infrared light brings in the exotic Floquet quantum spin Hall state and half-metal in two-dimensional Metal-organic frameworks (2D MOFs) because of the unbroken and broken...

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