Floquet topological phases of higher winding numbers in extended Su-Schrieffer-Heeger model under quenched drive
Sign Up to like & getrecommendations! Published in 2025 at "Physica Scripta"
DOI: 10.1088/1402-4896/ae0fca
Abstract: In this study topological properties of static and dynamic Su-Schrieffer-Heeger models with staggered further neighbor hopping terms of different extents are investigated. Topological characterization of the static chiral models is established in terms of conventional… read more here.
Keywords: winding numbers; schrieffer heeger; phases higher; topological phases ... See more keywords
Non-Hermitian Floquet Topological Sensors for Ultrasensitive Detection of Dynamic Signals.
Sign Up to like & getrecommendations! Published in 2025 at "Physical review letters"
DOI: 10.1103/f6wd-gljq
Abstract: Non-Hermitian systems, distinguished by the presence of exceptional points and non-Hermitian topological states, have transformed sensing technologies through the implementation of novel physical mechanisms. However, despite their demonstrated potential, existing non-Hermitian sensors are predominantly limited… read more here.
Keywords: floquet; non hermitian; hermitian floquet; topological sensors ... See more keywords
Non-Hermitian Floquet topological phases in the double-kicked rotor
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.053608
Abstract: Dynamical kicking systems possess rich topological structures. In this work, we study Floquet states of matter in a non-Hermitian extension of double kicked rotor model. Under the on-resonance condition, we find various non-Hermitian Floquet topological… read more here.
Keywords: double kicked; non hermitian; floquet topological; kicked rotor ... See more keywords
Chiral one-dimensional Floquet topological insulators beyond the rotating wave approximation
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.041103
Abstract: We study one-dimensional Floquet topological insulators with chiral symmetry going beyond the standard rotating wave approximation. The occurrence of many anticrossings between Floquet replicas leads to a dramatic extension of phase diagram regions with stable… read more here.
Keywords: topological insulators; wave approximation; floquet topological; one dimensional ... See more keywords
Quantum Hall criticality in Floquet topological insulators
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.165401
Abstract: Topological Floquet Anderson Insulators (TFAIs) are systems in which an interplay of topology, driving, and static disorder stabilizes a unique form of topological quantum matter. Here, the authors present a first-principles theory, describing the topological… read more here.
Keywords: topological insulators; criticality; quantum hall; floquet topological ... See more keywords
Dynamical chiral symmetry and symmetry-class conversion in Floquet topological insulators
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.109.184307
Abstract: In this work, we discuss properties with no static counterpart arising in Floquet topological insulators with a dynamical chiral symmetry (DCS), i.e., a chiral symmetry which is present while driving. We explore the topological properties… read more here.
Keywords: symmetry class; symmetry; topological insulators; floquet topological ... See more keywords
Quantum geometry and geometric entanglement entropy of one-dimensional Floquet topological matter
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.110.054310
Abstract: The geometry of quantum states could offer indispensable insights for characterizing the topological properties, phase transitions and entanglement nature of many-body systems. In this work, we reveal the quantum geometry and the associated entanglement entropy… read more here.
Keywords: quantum geometry; floquet topological; geometry; entanglement entropy ... See more keywords
Five-dimensional Floquet topological semimetals with emergent Yang monopoles and linked Weyl surfaces
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.111.045302
Abstract: Recently, Floquet topological matter has attracted significant attention for its potential to reveal novel topological phases inaccessible in static systems. In this paper, we investigate the effect of a time-periodic driving on the five-dimensional (5D)… read more here.
Keywords: time; periodic driving; emergent yang; five dimensional ... See more keywords
Universal nonanalytic behavior of the nonequilibrium Hall conductance in Floquet topological insulators
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DOI: 10.1103/physrevb.96.054306
Abstract: We study the Hall conductance in a Floquet topological insulator in the long time limit after sudden switches of the driving amplitude. Based on a high frequency expansion of the effective Hamiltonian and the micromotion… read more here.
Keywords: conductance floquet; floquet topological; conductance; universal nonanalytic ... See more keywords
Non-Hermitian Floquet topological phases with arbitrarily many real-quasienergy edge states
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.205417
Abstract: Topological states of matter in non-Hermitian systems have attracted a lot of attention due to their intriguing dynamical and transport properties. In this study, we propose a periodically driven non-Hermitian lattice model in one-dimension, which… read more here.
Keywords: topological phases; real quasienergy; floquet topological; edge states ... See more keywords
Floquet Topological Semimetal with Nodal Helix
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DOI: 10.1103/physrevb.99.115136
Abstract: Topological semimetals with nodal line are a novel class of topological matter extending the concept of topological matter beyond topological insulators and Weyl/Dirac semimetals. Here, we show that a Floquet topological semimetal with nodal helix… read more here.
Keywords: semimetal nodal; floquet topological; helix; topological semimetal ... See more keywords