Non-Equilibrium Dynamics Beyond Dephasing: Recurrences and Loss Induced Cooling in One-dimensional Bose Gases

di Bernhard Rauer (Autore)

Springer Nature Switzerland AG, 2019

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.

• Autore: Bernhard Rauer
• Editore: Springer Nature Switzerland AG
• Collana: Springer Theses
• Anno: 2019
• Rilegatura: Hardback
• Pagine: 128 p.
• Dimensioni: 235 x 155 mm
• EAN: 9783030182359

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