Direct Simulation Monte Carlo method for cold atom dynamics: classical Boltzmann equation in the quantum collision regime
| Autor: | P. B. Blakie, Andrew C. J. Wade, D. Baillie |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
Monte Carlo method Non-equilibrium thermodynamics FOS: Physical sciences Boltzmann equation Atomic and Molecular Physics and Optics Ultracold atom Quantum Gases (cond-mat.quant-gas) Dynamic Monte Carlo method Direct simulation Monte Carlo Statistical physics Condensed Matter - Quantum Gases Quantum Monte Carlo molecular modeling |
| Zdroj: | Wade, A C J, Baillie, D & Blakie, P B 2011, ' Direct simulation Monte Carlo method for cold-atom dynamics: Classical Boltzmann equation in the quantum collision regime ', Physical Review A, vol. 84, no. 2, pp. 23612 . https://doi.org/10.1103/PhysRevA.84.023612 |
| DOI: | 10.48550/arxiv.1105.2340 |
| Popis: | In this paper we develop a direct simulation Monte Carlo (DSMC) method for simulating highly nonequilibrium dynamics of nearly degenerate ultra-cold gases. We show that our method can simulate the high-energy collision of two thermal clouds in the regime observed in experiments [Thomas, et al. Phys. Rev. Lett. \textbf{93}, 173201 (2004)], which requires the inclusion of beyond s-wave scattering. We also consider the long-time dynamics of this system, demonstrating that this would be a practical experimental scenario for testing the Boltzmann equation and studying rethermalization. Comment: 15 pages, 14 figures |
| Databáze: | OpenAIRE |
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