Abstract
A commonly used cheoretical definition of superfluidity in the ground scate of a Bose gas is based on the response of the system to an imposed velocity field or, equivalently, to twisted boundary conditions in a box. We are able to carry out this program in the ease of a dilute interacting Bose gas in a trap, and we prove that a gas with repulsive interactions is 100% superfluid in the dilute limit in which the Gross-Pitaevskii equation is exact. This is the first example in an experimentally realistic continuum model in which superfluidity is rigorously verified.
| Original language | English (US) |
|---|---|
| Title of host publication | The Stability of Matter |
| Subtitle of host publication | From Atoms to Stars: Fourth Edition |
| Publisher | Springer Berlin Heidelberg |
| Pages | 903-908 |
| Number of pages | 6 |
| ISBN (Print) | 3540420835, 9783540222125 |
| DOIs | |
| State | Published - 2005 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy