Manifestation of quantum resonances and antiresonances in a finite-temperature dilute atomic gas

2007/07/31 by M. Saunders, P. L. Halkyard, K. J. Challis +1 · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum chaos and dynamical systems #Quantum optics and atomic interactions #nlin.CD #physics.atom-ph

paper · pdf · doi:10.1103/physreva.76.043415

published as Phys. Rev. A 76, 043415 (2007) · 15 pages, 7 figures

arxiv created 2007/08/07 · openalex publication_date 2007/10/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate the effect of temperature on resonant and antiresonant dynamics in a dilute atomic gas kicked periodically by a standing-wave laser field. Our numerical calculations are based on a Monte Carlo method for an incoherent mixture of noninteracting plane waves, and show that the atomic dynamics are highly sensitive to the initial momentum width of the gas. We explain this sensitivity by examining the time evolution of individual atomic center-of-mass momentum eigenstates with varying quasimomentum, and we determine analytic expressions for the evolution of the second-order momentum moment to illustrate the range of behaviors.

Citations

• Quantum resonances and decoherence for -kicked atoms
• Gravity-Sensitive Quantum Dynamics in Cold Atoms
• Observation of Sub-Fourier Resonances in a Quantum-Chaotic System
• Classical Scaling Theory of Quantum Resonances
• Quantum-mechanical cumulant dynamics near stable periodic orbits in phase space: Application to the classical-like dynamics of quantum accelerator modes

Cited by

• Fractional resonances in the atom-opticalδ-kicked accelerator
• The initial velocity dependence of the quantum resonance in the delta-kicked rotor