Time-dependent density-functional theory for superfluids

Authors
Chiofalo, ML Tosi, MP
Citation
Ml. Chiofalo et Mp. Tosi, Time-dependent density-functional theory for superfluids, EUROPH LETT, 53(2), 2001, pp. 162-168
Citations number
22
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
53
Issue
2
Year of publication
2001
Pages
162 - 168
Database
ISI
SICI code
0295-5075(200101)53:2<162:TDTFS>2.0.ZU;2-4
Abstract
A density-functional theory is established for inhomogeneous superfluids at finite temperature, subject to time-dependent external fields in isotherma l 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.