Yang-Yang thermodynamics on an atom chip.

We investigate the behavior of a weakly interacting nearly one-dimensional trapped Bose gas at finite temperature. We perform in situ measurements of spatial density profiles and show that they are very well described by a model based on exact solutions obtained using the Yang-Yang thermodynamic formalism, in a regime where other, approximate theoretical approaches fail. We use Bose-gas focusing [I. Shvarchuck, Phys. Rev. Lett. 89, 270404 (2002)] to probe the axial momentum distribution of the gas and find good agreement with the in situ results.

• Publication year

  2007

• Venue

  Physical Review Letters

• Publication date

  2007-09-12

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevLett.100.090402arXiv 0709.1899PMID 18352680
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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