Show simple item record

dc.contributor.authorHenderson, Thomas M.
Scuseria, Gustavo E.
Dukelsky, Jorge
Signoracci, Angelo
Duguet, Thomas
dc.date.accessioned 2016-01-29T20:03:39Z
dc.date.available 2016-01-29T20:03:39Z
dc.date.issued 2014
dc.identifier.citation Henderson, Thomas M., Scuseria, Gustavo E., Dukelsky, Jorge, et al.. "Quasiparticle coupled cluster theory for pairing interactions." Physical Review C, 89, no. 5 (2014) American Physical Society: 054305. http://dx.doi.org/10.1103/PhysRevC.89.054305.
dc.identifier.urihttps://hdl.handle.net/1911/88271
dc.description.abstract We present an extension of the pair coupled cluster doubles (p-CCD) method to quasiparticles and apply it to the attractive pairing Hamiltonian. Near the transition point where number symmetry gets spontaneously broken, the proposed BCS-based p-CCD method yields significantly better energies than existing methods when compared to exact results obtained via solution of the Richardson equations. The quasiparticle p-CCD method has a low computational cost of O(N3) as a function of system size. This together with the high quality of results here demonstrated, points to considerable promise for the accurate description of strongly correlated systems with more realistic pairing interactions.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Quasiparticle coupled cluster theory for pairing interactions
dc.type Journal article
dc.contributor.funder U.S. Department of Energy Office of Basic Energy Sciences
dc.contributor.funder Spanish MINECO
dc.contributor.funder Welch Foundation
dc.contributor.funder Espace de Structure et RéactionNucléaire Théorique
dc.citation.journalTitle Physical Review C
dc.citation.volumeNumber 89
dc.citation.issueNumber 5
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevC.89.054305
dc.identifier.grantID DE-FG02-09ER16053 (U.S. Department of Energy Office of Basic Energy Sciences)
dc.identifier.grantID FIS2012-34479 (Spanish MINECO)
dc.identifier.grantID C-0036 (Welch Foundation)
dc.type.publication publisher version
dc.citation.firstpage 054305


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record