SAMOP 2023 – wissenschaftliches Programm

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SYPD: PhD Symposium – Many-body Physics in Ultracold Quantum Systems

SYPD 1: Many-body Physics in Ultracold Quantum Systems

SYPD 1.4: Hauptvortrag

Donnerstag, 9. März 2023, 16:00–16:30, E415

Quantum gas in a box — •Zoran Hadzibabic — University of Cambridge

Ultracold atomic gases are used with great success to study fundamental many-body phenomena. While traditionally they were produced in harmonic traps and had inhomogeneous densities, one can now also create homogeneous samples using optical box traps [1,2]. This simplifies the interpretation of experiments, provides more direct connections with theory, and sometimes allows qualitatively new studies [2]. I will give an overview of our recent experiments with box-trapped Bose gases, focusing on non-equilibrium phenomena such as turbulence and evolution of far-from-equilibrium closed quantum systems [3-5].

[1] Bose-Einstein condensation of atoms in a uniform potential, A. L. Gaunt et al., Phys. Rev. Lett. 110, 200406 (2013).

[2] Review: Quantum gases in optical boxes, N. Navon, R. P. Smith, and Z. Hadzibabic, Nat. Phys. 17, 1334 (2021).

[3] Emergence of a turbulent cascade in a quantum gas, N. Navon, A. L. Gaunt, R. P. Smith, and Z. Hadzibabic, Nature 539, 72 (2016).

[4] Bidirectional dynamic scaling in an isolated Bose gas far from equilibrium, J. A. P. Glidden et al., Nat. Phys. 17, 457 (2021).

[5] Universal equation of state for wave turbulence in a quantum gas, L. H. Dogra et al., arXiv:2212.08652.