# Quantum signature of chaos and thermalization in the kicked Dicke model.

@article{Ray2016QuantumSO, title={Quantum signature of chaos and thermalization in the kicked Dicke model.}, author={Sayak Ray and A Ghosh and Subhasis Sinha}, journal={Physical review. E}, year={2016}, volume={94 3-1}, pages={ 032103 } }

We study the quantum dynamics of the kicked Dicke model (KDM) in terms of the Floquet operator, and we analyze the connection between chaos and thermalization in this context. The Hamiltonian map is constructed by suitably taking the classical limit of the Heisenberg equation of motion to study the corresponding phase-space dynamics, which shows a crossover from regular to chaotic motion by tuning the kicking strength. The fixed-point analysis and calculation of the Lyapunov exponent (LE…

## 14 Citations

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### Chaos and quantum scars in a coupled top model.

- PhysicsPhysical review. E
- 2020

This work considers a coupled top model describing two interacting large spins, which is studied semiclassically as well as quantum mechanically, and identifies quantum scars as reminiscent of unstable collective dynamics even in the presence of an interaction.

### Chaos and Quantum Scars in Bose-Josephson Junction Coupled to a Bosonic Mode.

- PhysicsPhysical review letters
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The imprint of unstable π-oscillation as many body quantum scar (MBQS), which leads to the deviation from ergodicity and quantify the degree of scarring is identified.

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- Physics, MathematicsNew Journal of Physics
- 2022

We study the semiclassical limit of the anisotropic two-photon Dicke model with a dissipative bosonic field and describe its rich nonlinear dynamics. Besides normal and ‘superradiant’-like phases,…

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- 2022

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### Signature of chaos and delocalization in a periodically driven many-body system: An out-of-time-order-correlation study

- PhysicsPhysical Review A
- 2018

We study out-of-time-order correlation (OTOC) for one-dimensional periodically driven hardcore bosons in the presence of Aubry-Andr\'e (AA) potential and show that both the spectral properties and…

### Thermalization in parametrically driven coupled oscillators

- PhysicsJournal of Statistical Mechanics: Theory and Experiment
- 2020

We consider a system of two coupled oscillators one of which is driven parametrically and investigate both classical and quantum dynamics within Floquet description. Characteristic changes in the…

### Drive-induced delocalization in the Aubry-André model.

- PhysicsPhysical review. E
- 2018

The single particle delocalization phenomena of the Aubry-André (AA) model subjected to periodic drives is studied, exhibiting multifractality in the spectrum as well as in the Floquet eigenfunctions.

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