---
res:
bibo_abstract:
- "While Hartree–Fock theory is well established as a fundamental approximation
for interacting fermions, it has been unclear how to describe corrections to it
due to many-body correlations. In this paper we start from the Hartree–Fock state
given by plane waves and introduce collective particle–hole pair excitations.
These pairs can be approximately described by a bosonic quadratic Hamiltonian.
We use Bogoliubov theory to construct a trial state yielding a rigorous Gell-Mann–Brueckner–type
upper bound to the ground state energy. Our result justifies the random-phase
approximation in the mean-field scaling regime, for repulsive, regular interaction
potentials.\r\n@eng"
bibo_authorlist:
- foaf_Person:
foaf_givenName: Niels P
foaf_name: Benedikter, Niels P
foaf_surname: Benedikter
foaf_workInfoHomepage: http://www.librecat.org/personId=3DE6C32A-F248-11E8-B48F-1D18A9856A87
orcid: 0000-0002-1071-6091
- foaf_Person:
foaf_givenName: Phan Thành
foaf_name: Nam, Phan Thành
foaf_surname: Nam
- foaf_Person:
foaf_givenName: Marcello
foaf_name: Porta, Marcello
foaf_surname: Porta
- foaf_Person:
foaf_givenName: Benjamin
foaf_name: Schlein, Benjamin
foaf_surname: Schlein
- foaf_Person:
foaf_givenName: Robert
foaf_name: Seiringer, Robert
foaf_surname: Seiringer
foaf_workInfoHomepage: http://www.librecat.org/personId=4AFD0470-F248-11E8-B48F-1D18A9856A87
bibo_doi: 10.1007/s00220-019-03505-5
bibo_volume: 374
dct_date: 2020^xs_gYear
dct_isPartOf:
- http://id.crossref.org/issn/0010-3616
- http://id.crossref.org/issn/1432-0916
dct_language: eng
dct_publisher: Springer Nature@
dct_title: Optimal upper bound for the correlation energy of a Fermi gas in the
mean-field regime@
...