Conditions for one-dimensional supersonic flow of quantum gases

S Giovanazzi, C Farrell, T Kiss, U Leonhardt

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

One can use transsonic Bose-Einstein condensates of alkali atoms to establish the laboratory analog of the event horizon and to measure the acoustic version of Hawking radiation. We determine the conditions for supersonic flow and the Hawking temperature for realistic condensates on waveguides where an external potential plays the role of a supersonic nozzle. The transition to supersonic speed occurs at the potential maximum and the Hawking temperature is entirely determined by the curvature of the potential.

Original languageEnglish
Pages (from-to)063602
Number of pages6
JournalPhysical Review. A, Atomic, molecular, and optical physics
Volume70
Issue number6
DOIs
Publication statusPublished - Dec 2004

Keywords

  • HAWKING RADIATION
  • BLACK-HOLES
  • ATOMS

Fingerprint

Dive into the research topics of 'Conditions for one-dimensional supersonic flow of quantum gases'. Together they form a unique fingerprint.

Cite this