A self-consistent theory of liquid He-4
| dc.creator | Vakarchuk, I. O. | |
| dc.date | 2005-02-21 | |
| dc.date.accessioned | 2026-07-07T06:12:11Z | |
| dc.date.available | 2026-07-07T06:12:11Z | |
| dc.description | A new method is proposed for the calculation of full density matrix and thermodynamic functions of a many-boson system. Explicit expressions are obtained in the pair correlations approximation for an arbitrary temperature. The theory is self-consistent in the sence that the calculated properties at low temperatures coincide with that of Bogoliubov theory and in the high-temperature limit lead to the results for classical non-ideal gas in the random phase approximation. The phase transition is also revealed as a concequence of Bose-Einstein condensation deformed by interatomic interactions. All the final formulae are written solely via the liquid structure factor taken as a source information instead of the interatomic potential and, therefore, interconnect only observable quantities. This gives also a possibility to study such a strongly non-ideal system as liquid He-4. | |
| dc.description | 28 pages | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0502127 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0502127 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/92714 | |
| dc.subject | Quantum Physics | |
| dc.title | A self-consistent theory of liquid He-4 | |
| dc.type | text |