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TitleNon-Equilibrium Dynamics Beyond Dephasing [electronic resource] : Recurrences and Loss Induced Cooling in One-dimensional Bose Gases / by Bernhard Rauer
ImprintCham : Springer International Publishing : Imprint: Springer, 2019
Edition 1st ed. 2019
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Descript XII, 128 p. 55 illus., 32 illus. in color. online resource


Cold atomic gases trapped and manipulated on atom chips allow the realization of seminal one-dimensional (1d) quantum many-body problems in an isolated and well controlled environment. In this context, this thesis presents an extensive experimental study of non-equilibrium dynamics in 1d Bose gases, with a focus on processes that go beyond simple dephasing dynamics. It reports on the observation of recurrences of coherence in the post-quench dynamics of a pair of 1d Bose gases and presents a detailed study of their decay. The latter represents the first observation of phonon-phonon scattering in these systems. Furthermore, the thesis investigates a novel cooling mechanism occurring in Bose gases subjected to a uniform loss of particles. Together, the results presented show a wide range of non-equilibrium phenomena occurring in 1d Bose gases and establish them as an ideal testbed for many-body physics beyond equilibrium


Introduction -- Theoretical basics -- Experimental setup and probing -- Cooling through uniform loss -- Recurrences -- Outlook -- Appendices

Quantum theory Quantum Gases and Condensates. Quantum Physics. Low Temperature Physics.


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