Analytic approaches to periodically driven closed quantum systems: methods and applications

A Sen, D Sen, K Sengupta - Journal of Physics: Condensed …, 2021 - iopscience.iop.org
We present a brief overview of some of the analytic perturbative techniques for the
computation of the Floquet Hamiltonian for a periodically driven, or Floquet, quantum many …

Probing topological signatures in an optically driven lattice

L Tamang, T Biswas - Physical Review B, 2023 - APS
The α-T 3 lattice, an interpolation model between the honeycomb lattice of graphene (α= 0)
and the dice lattice (α= 1), undergoes a topological phase transition across α= 1/2 when …

Prethermal fragmentation in a periodically driven fermionic chain

S Ghosh, I Paul, K Sengupta - Physical Review Letters, 2023 - APS
We study a fermionic chain with nearest-neighbor hop** and density-density interactions,
where the nearest-neighbor interaction term is driven periodically. We show that such a …

Out-of-Time-Order correlators in driven conformal field theories

S Das, B Ezhuthachan, A Kundu, S Porey… - Journal of High Energy …, 2022 - Springer
A bstract We compute Out-of-Time-Order correlators (OTOCs) for conformal field theories
(CFTs) subjected to either continuous or discrete periodic drive protocols. This is achieved …

Floquet second order topological superconductor based on unconventional pairing

AK Ghosh, T Nag, A Saha - Physical Review B, 2021 - APS
We theoretically investigate the Floquet generation of second-order topological
superconducting (SOTSC) phase in the high-temperature platform both in two dimension …

Floquet band structure of a semi-Dirac system

Q Chen, L Du, GA Fiete - Physical Review B, 2018 - APS
In this work we use Floquet-Bloch theory to study the influence of circularly and linearly
polarized light on two-dimensional band structures with semi-Dirac band touching points …

Statistical mechanics of Floquet quantum matter: Exact and emergent conservation laws

A Haldar, A Das - Journal of Physics: Condensed Matter, 2022 - iopscience.iop.org
Equilibrium statistical mechanics rests on the assumption of chaotic dynamics of a system
modulo the conservation laws of local observables: extremization of entropy immediately …

Dynamical relaxation of correlators in periodically driven integrable quantum systems

S Aditya, S Samanta, A Sen, K Sengupta, D Sen - Physical Review B, 2022 - APS
We show that the correlation functions of a class of periodically driven integrable closed
quantum systems approach their steady-state value as n−(α+ 1)/β, where n is the number of …

Floquet engineering of low-energy dispersions and dynamical localization in a periodically kicked three-band system

L Tamang, T Nag, T Biswas - Physical Review B, 2021 - APS
Although we know much about Floquet dynamics of pseudospin-1/2 systems, namely
graphene, we here address the stroboscopic properties of a periodically kicked three-band …

Periodically driven Rydberg chains with staggered detuning

B Mukherjee, A Sen, K Sengupta - Physical Review B, 2022 - APS
We study the stroboscopic dynamics of a periodically driven finite Rydberg chain with
staggered (Δ) and time-dependent uniform [λ (t)] detuning terms using exact diagonalization …