Dipolar Quantum Gases group

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From single-particle excitations to sound waves in a box-trapped atomic Bose-Einstein condensate

(2018)

Authors:

Samuel J Garratt, Christoph Eigen, Jinyi Zhang, Patrik Turzák, Raphael Lopes, Robert P Smith, Zoran Hadzibabic, Nir Navon
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Synthetic dissipation and cascade fluxes in a turbulent quantum gas

(2018)

Authors:

Nir Navon, Christoph Eigen, Jinyi Zhang, Raphael Lopes, Alexander L Gaunt, Kazuya Fujimoto, Makoto Tsubota, Robert P Smith, Zoran Hadzibabic
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Elliptic flow in a strongly interacting normal Bose gas

Physical Review A American Physical Society 98:1 (2018) 011601(R)

Authors:

RJ Fletcher, J Man, R Lopes, P Christodoulou, J Schmitt, M Sohmen, N Navon, Robert Smith, Z Hadzibabic

Abstract:

We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalizing power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes.
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Universal Prethermal Dynamics of Bose Gases Quenched to Unitarity

(2018)

Authors:

Christoph Eigen, Jake AP Glidden, Raphael Lopes, Eric A Cornell, Robert P Smith, Zoran Hadzibabic
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Elliptic flow in a strongly-interacting normal Bose gas

(2018)

Authors:

Richard J Fletcher, Jay Man, Raphael Lopes, Panagiotis Christodoulou, Julian Schmitt, Maximilian Sohmen, Nir Navon, Robert P Smith, Zoran Hadzibabic
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