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Verfasst von:Rauer, Bernhard [VerfasserIn]   i
Titel:Non-equilibrium dynamics beyond dephasing
Titelzusatz:recurrences and loss induced cooling in one-dimensional bose gases
Verf.angabe:Bernhard Rauer
Umfang:1 Online-Ressource (XII, 128 Seiten)
Illustrationen:Illustrationen, Diagramme
Gesamttitel/Reihe:Springer Theses : Recognizing Outstanding Ph.D. Research
 Springer Theses, Recognizing Outstanding Ph.D. Research
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Hochschulschrift:Dissertation, TU Wien
Abstract:Introduction -- Theoretical basics -- Experimental setup and probing -- Cooling through uniform loss -- Recurrences -- Outlook -- Appendices
 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
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Schlagwörter:(s)Bose-Gas   i / (s)Dimension 1   i / (s)Nichtgleichgewicht   i / (s)Vielteilchensystem   i / (s)Quanteneffekt   i / (s)Ultrakaltes Atom   i / (s)Rubidium-87   i
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