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.
|Autori:||Chiofalo M; Tosi MP|
|Titolo:||Time-dependent density-functional theory for superfluids|
|Anno del prodotto:||2001|
|Digital Object Identifier (DOI):||10.1209/epl/i2001-00131-8|
|Appare nelle tipologie:||1.1 Articolo in rivista|