4.4 Article

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

Journal

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
Volume 217, Issue 1, Pages 43-53

Publisher

SPRINGER HEIDELBERG
DOI: 10.1140/epjst/e2013-01752-0

Keywords

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Funding

  1. Austrian FWF [M1040-N16]
  2. Doctoral Programme CoQuS [W1210]
  3. Wittgenstein Prize
  4. EU through the integrating project AQUTE
  5. Siemens Austria
  6. City of Vienna
  7. FWF [P22590-N16]
  8. FWF through the Lise Meitner-Programme [P1423-N27]
  9. Austrian Science Fund (FWF) [Z 118, P 22590] Funding Source: researchfish
  10. Austrian Science Fund (FWF) [W1210] Funding Source: Austrian Science Fund (FWF)

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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 semi-classical effective description that allows us to model the dynamics as a stochastic Ornstein-Uhlenbeck process.

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