Scientific Results

Discontinuities in the First and Second Sound Velocities at the Berezinskii-Kosterlitz-Thouless Transition

Year: 2014

Authors: Ozawa T., Stringari S.

Autors Affiliation: INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy

Abstract: We calculate the temperature dependence of the first and second sound velocities in the superfluid phase of a 2D dilute Bose gas by solving Landau

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 112 (2)      Pages from: 025302  to: 025302

More Information: We are grateful to stimulating discussions with Lev P. Pitaevskii. Useful discussions with Yan-Hua Hou, Iacopo Carusotto, and Jean Dalibard are also acknowledged. This work was supported by the ERC through the QGBE grant and by Provincia Autonoma di Trento.
DOI: 10.1103/PhysRevLett.112.025302

Citations: 9
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