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Prethermalization in one-dimensional Bose gases: description by a stochastic Ornstein-Uhlenbeck process

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 نشر من قبل Tim Langen
 تاريخ النشر 2012
  مجال البحث فيزياء
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We experimentally study the relaxation dynamics of a coherently split one-dimensional Bose gas using matterwave interference. Measuring the full probability distributions of interference contrast reveals the prethermalization of the system to a non-thermal steady state. To describe the evolution of noise and correlations we develop a semiclassical effective description that allows us to model the dynamics as a stochastic Ornstein-Uhlenbeck process.



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