The manifestation of quantum resonances and antiresonances in a finite temperature dilute atomic gas

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 non-interacting 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 centre of mass momentum eigenstates with varying quasimomentum, and we have determined analytic expressions for the evolution of the second-order momentum moment to illustrate the range of behaviours.

arXiv comment15 pages, 7 figures

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Cited by in corpus (16)

• Entanglement in a periodic quench
• Quantum Ratchet Accelerator without a Bichromatic Lattice Potential
• Second-order, number-conserving description of non-equilibrium dynamics in finite-temperature Bose-Einstein condensates
• Nonlinear resonances in δ-kicked Bose-Einstein Condensates
• Coherence and Instability in a Driven Bose-Einstein Condensate: A Fully Dynamical Number-Conserving Approach
• Quantum resonances in an atom-optical delta-kicked harmonic oscillator
• Power-law behavior in the quantum-resonant evolution of the delta-kicked accelerator
• Quantum resonant effects in the delta-kicked rotor revisited
• The initial momentum dependence of the quantum resonance in the delta-kicked rotor
• Fractional resonances in the atom-optical delta-kicked accelerator
• An $\epsilon$-pseudoclassical model for quantum resonances in a cold dilute atomic gas periodically driven by finite-duration standing-wave laser pulses
• Resonant quantum kicked rotor with two internal levels
• Lattice-depth measurement using multi-pulse atom diffraction in and beyond the weakly diffracting limit
• Kicked-rotor quantum resonances in position space: Application to situations of experimental interest
• Driving the resonant quantum kicked rotor via extended initial conditions
• Lattice-depth measurement using continuous grating atom diffraction