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Updated: Jun 28, 2025
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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
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Quasi-integrability and nonlinear resonances in cold atoms under modulation.
Rahul Gupta1, Manan Jain2, Sudhir R Jain3
1Department of Physics, Indian Institute of Technology, Mumbai 400076, India.
Royal Society Open Science
|April 16, 2024
Summary
We revisited quantum dynamics of atoms under phase modulation, analyzing a two-level system
Area of Science:
- Quantum physics
- Atomic physics
- Quantum dynamics
Background:
- Phase modulation of atomic systems is crucial for quantum control.
- Understanding the evolution of two-level systems is fundamental in quantum mechanics.
Purpose of the Study:
- To provide an exact analysis of the quantum dynamics of a two-level system under phase modulation.
- To investigate the behavior of a spinor under a time-dependent matrix Hamiltonian.
Main Methods:
- Exact analysis of a two-level system (spinor) evolution.
- Investigation of dynamics on coupled potential energy surfaces (PESs).
Main Results:
- Dynamics evolve on two coupled PESs: one binding, one scattering.
- Observed quasi-integrable dynamics with nonlinear resonances.
- Bounded dynamics with intermittent scattering, resembling Anderson and dynamical localization.
Conclusions:
- The study offers insights into quantum dynamics and localization phenomena.
- Findings are relevant for multi-qubit systems in quantum computation and other fields.
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