High-frequency expansion for Floquet prethermal phases with emergent symmetries: Application to time crystals and Floquet engineering
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.020301
Abstract: Prethermalization, where quasi-steady states are realized in the intermediate long time regime (prethermal regime), in periodically driven (Floquet) systems is an important phenomenon since it provides a platform of nontrivial Floquet many-body physics. In this… read more here.
Keywords: time; application; high frequency; time crystals ... See more keywords
Engineering the Floquet spectrum of superconducting multiterminal quantum dots
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.035450
Abstract: Here we present a theoretical investigation of the Floquet spectrum in multiterminal quantum dot Josephson junctions biased with commensurate voltages. We first draw an analogy between the electronic band theory and superconductivity which enlightens the… read more here.
Keywords: quantum dots; floquet spectrum; floquet; superconducting multiterminal ... See more keywords
Floquet spectrum and electronic transitions of tilted anisotropic Dirac materials under electromagnetic radiation: Monodromy matrix approach
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.045134
Abstract: We analyze the quasienergy spectrum, the valence to conduction-band transition probabilities, and the photo-induced density currents of a tilted anisotropic Dirac material subject to linearly and circularly polarized electromagnetic fields. The quasienergy spectrum is numerically… read more here.
Keywords: field; floquet; monodromy matrix; tilted anisotropic ... See more keywords
Intrinsic dissipative Floquet superconductors beyond mean-field theory
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DOI: 10.1103/physrevb.104.014512
Abstract: We study the intrinsic superconductivity in a dissipative Floquet electronic system in the presence of attractive interactions. Based on the functional Keldysh theory beyond the mean-field treatment, we find that the system shows a time-periodic… read more here.
Keywords: dissipative floquet; intrinsic dissipative; theory; floquet ... See more keywords
Emergent conservation in the Floquet dynamics of integrable non-Hermitian models
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DOI: 10.1103/physrevb.107.155117
Abstract: We study the dynamics of a class of integrable non-Hermitian free-fermionic models driven periodically using a continuous drive protocol characterized by an amplitude $g_1$ and frequency $\omega_D$. We derive an analytic, albeit perturbative, Floquet Hamiltonian… read more here.
Keywords: integrable non; non hermitian; floquet; drive ... See more keywords
Topological Floquet bound states in the continuum.
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DOI: 10.1364/ol.470762
Abstract: A honeycomb array of helical waveguides with zigzag-zigzag edges and a refractive index gradient orthogonal to the edges may support Floquet bound states in the continuum (BICs). The gradient of the refractive index leads to… read more here.
Keywords: bound states; states continuum; floquet; floquet bound ... See more keywords