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 …

The quantum Ising chain for beginners

GB Mbeng, A Russomanno, GE Santoro - SciPost Physics Lecture Notes, 2024 - scipost.org
We present here various techniques to work with clean and disordered quantum Ising
chains, for the benefit of students and non-experts. Starting from the Jordan-Wigner …

Periodic steady regime and interference in a periodically driven quantum system

A Russomanno, A Silva, GE Santoro - Physical review letters, 2012 - APS
We study the coherent dynamics of a quantum many-body system subject to a time-periodic
driving. We argue that in many cases, destructive interference in time makes most of the …

Dynamics of the vacuum state in a periodically driven Rydberg chain

B Mukherjee, A Sen, D Sen, K Sengupta - Physical Review B, 2020 - APS
We study the dynamics of a periodically driven Rydberg chain starting from the state with
zero Rydberg excitations (vacuum state denoted by| 0〉) using a square pulse protocol in …

Onset of Floquet thermalization

A Haldar, R Moessner, A Das - Physical Review B, 2018 - APS
In the presence of interactions, a closed, homogeneous (disorder-free) many-body system is
believed to generically heat up to an “infinite temperature” ensemble when subjected to a …

Dynamical freezing and scar points in strongly driven floquet matter: Resonance vs emergent conservation laws

A Haldar, D Sen, R Moessner, A Das - Physical Review X, 2021 - APS
We consider a clean quantum system subject to strong periodic driving. The existence of a
dominant energy scale, h D x, can generate considerable structure in an effective …

Mobility edge and multifractality in a periodically driven Aubry-André model

M Sarkar, R Ghosh, A Sen, K Sengupta - Physical Review B, 2021 - APS
We study the localization-delocalization transition of Floquet eigenstates in a driven
fermionic chain with an incommensurate Aubry-André potential and a hop** amplitude …

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 …

Emergent symmetries in prethermal phases of periodically driven quantum systems

T Banerjee, K Sengupta - Journal of Physics: Condensed Matter, 2025 - iopscience.iop.org
Periodically driven closed quantum systems are expected to eventually heat up to infinite
temperature; reaching a steady state described by a circular orthogonal ensemble …

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 …