• Rapid Communication

Breakdown of scale invariance in a quasi-two-dimensional Bose gas due to the presence of the third dimension

Karina Merloti, Romain Dubessy, Laurent Longchambon, Maxim Olshanii, and Hélène Perrin
Phys. Rev. A 88, 061603(R) – Published 27 December 2013

Abstract

In this Rapid Communication, we describe how the presence of the third dimension may break the scale invariance in a two-dimensional Bose gas in a pancake-shaped trap. From the two-dimensional perspective, the possibility of a weak spilling of the atomic density beyond the ground state of the confinement alters the two-dimensional chemical potential; in turn, this correction no longer supports scale invariance. We compare experimental data with numerical and analytic perturbative results and find a good agreement.

  • Figure
  • Received 5 November 2013

DOI:https://doi.org/10.1103/PhysRevA.88.061603

©2013 American Physical Society

Authors & Affiliations

Karina Merloti1, Romain Dubessy1, Laurent Longchambon1, Maxim Olshanii1,2, and Hélène Perrin1,*

  • 1Laboratoire de physique des lasers, CNRS, Université Paris 13, Sorbonne Paris Cité, 99 avenue J.-B. Clément, F-93430 Villetaneuse, France
  • 2Department of Physics, University of Massachusetts Boston, Boston, Massachusetts 02125, USA

  • *helene.perrin@univ-paris13.fr

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Issue

Vol. 88, Iss. 6 — December 2013

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