| Issue |
Europhys. Lett.
Volume 53, Number 2, January 2001
|
|
|---|---|---|
| Page(s) | 162 - 168 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2001-00131-8 | |
| Published online | 01 December 2003 | |
Time-dependent density-functional theory for superfluids
INFM and Classe di Scienze,
Scuola Normale Superiore - I-56126 Pisa, Italy
Received:
7
August
2000
Accepted:
6
November
2000
A density-functional theory is established for inhomogeneous superfluids at finite temperature, subject to time-dependent external fields in isothermal conditions. After outlining parallelisms between a neutral superfluid and a charged superconductor, Hohenberg-Kohn-Sham-type theorems are proved for gauge-invariant densities and a set of Bogolubov-Popov equations including exchange and correlation is set up. Earlier results applying in the linear-response regime are recovered.
PACS: 03.75.Fi – Phase coherent atomic ensembles; quantum condensation phenomena / 31.15.Ew – Density-functional theory / 47.37.+q – Hydrodynamic aspects of superfluidity
© EDP Sciences, 2001
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