Yang-Yang thermodynamics on an atom chip
| Authors |
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| Publication date | 2008 |
| Journal | Physical Review Letters |
| Volume | Issue number | 100 | 9 |
| Pages (from-to) | 090402 |
| Number of pages | 4 |
| Organisations |
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| Abstract | 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 et al., Phys. Rev. Lett. 89, 270404 (2002)] to probe the axial momentum distribution of the gas and find good agreement with the in situ results. |
| Document type | Article |
| Published at |
https://doi.org/10.1103/PhysRevLett.100.090402
(Final published version)
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