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Nonequilibrium Steady State in a Large Magneto-Optical Trap

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  • Marius Gaudesius, Universite de Nice-Sophia Antipolis, University of Oklahoma
  • ,
  • Yong Chang Zhang, Xi'an Jiaotong University
  • ,
  • Thomas Pohl
  • ,
  • Guillaume Labeyrie, Universite de Nice-Sophia Antipolis
  • ,
  • Robin Kaiser, Universite de Nice-Sophia Antipolis

Considering light-mediated long-range interactions between cold atoms in a magneto-optical trap (MOT), we present numerical evidence of a nonequilibrium steady state (NESS) for sufficiently large number of atoms (> (Formula presented.)). This state manifests itself as the appearance of an anisotropic distribution of velocity when a MOT approaches the threshold beyond which self-oscillating instabilities occur. Our three-dimensional (3D) spatiotemporal model with nonlocal spatial dependencies stemming from the interatomic interactions has recently been compared successfully to predict different instability thresholds and regimes in experiments with rubidium atoms. The behavior of the NESS is studied as a function of the main MOT parameters, including its spatiotemporal characteristics.

Antal sider12
StatusUdgivet - dec. 2022

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