In Floquet topological systems the two-terminal conductance quantizes to |W_ε| e²/h and the Hall conductance to W_ε e²/h after summing all Floquet sidebands, where W_ε is the winding invariant of the quasienergy gap.
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Center-of-mass dynamics in the driven Su-Schrieffer-Heeger model exhibit multi-frequency oscillations whose frequencies and phases directly encode Floquet topological invariants and phase transitions.
Linearly polarized light breaks spin-sector symmetry in d-wave altermagnets, inducing transitions from quantum spin Hall to spin-polarized Chern insulator to trivial states, with all anomalous transport coefficients showing d-wave angular dependence and some becoming quantized.
Nonperturbative Floquet-Keldysh theory for SHG in two-band systems predicts a shift from E squared to linear E scaling then to field-independent response, controlled by one- and two-photon resonances, and verified numerically in a GeS model.
The dissipation-independent nonlinear Hall conductivity is not universal but decomposes into a geometric contribution recovering the quantum metric and a novel kinetic contribution that depends on the system-bath coupling.
Dual-parameter modulation of detuning and Rabi frequency broadens the dynamical freezing regime in interacting Rydberg arrays by coherently canceling interaction-induced absorption pathways identified through perturbative Floquet analysis.
Observation of a gapless charge order mode dispersing to 0.8 eV in the optically excited metastable state of Sr14Cu24O41 using time-resolved RIXS at the upper Hubbard band.
Extending the wave-packet ansatz for Bloch electrons to include interband contributions and applying the time-dependent variational principle yields leading-order nonadiabatic corrections to the Lagrangian, including an energy-gap-renormalized quantum metric that recasts dynamics as geodesic motion.
citing papers explorer
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Quantized Transport in Floquet Topological Insulators
In Floquet topological systems the two-terminal conductance quantizes to |W_ε| e²/h and the Hall conductance to W_ε e²/h after summing all Floquet sidebands, where W_ε is the winding invariant of the quasienergy gap.
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Dynamical Signatures of Floquet Topology in Wave Packet Dynamics
Center-of-mass dynamics in the driven Su-Schrieffer-Heeger model exhibit multi-frequency oscillations whose frequencies and phases directly encode Floquet topological invariants and phase transitions.
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Light-Induced Topological Phase Transitions and Anomalous Thermal Transport in d-Wave Altermagnets
Linearly polarized light breaks spin-sector symmetry in d-wave altermagnets, inducing transitions from quantum spin Hall to spin-polarized Chern insulator to trivial states, with all anomalous transport coefficients showing d-wave angular dependence and some becoming quantized.
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Nonperturbative effects in second harmonic generation
Nonperturbative Floquet-Keldysh theory for SHG in two-band systems predicts a shift from E squared to linear E scaling then to field-independent response, controlled by one- and two-photon resonances, and verified numerically in a GeS model.