Zobrazeno 1 - 10
of 58
pro vyhledávání: '"C. Esebbag"'
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
5 pags., 4 figs.
We study the structure of the number-projected BCS (PBCS) wave function in the particle-hole basis, displaying its similarities with coupled clusters theory (CCT). The analysis of PBCS together with several modifications suggest
We study the structure of the number-projected BCS (PBCS) wave function in the particle-hole basis, displaying its similarities with coupled clusters theory (CCT). The analysis of PBCS together with several modifications suggest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8fd547acfa156614a7dcae3fc9e0765
http://hdl.handle.net/10261/152274
http://hdl.handle.net/10261/152274
Publikováno v:
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
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Digital.CSIC. Repositorio Institucional del CSIC
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Digital.CSIC. Repositorio Institucional del CSIC
10 págs.; 7 figs.
We study the integrability of the two-spin elliptic Gaudin model for arbitrary values of the Hamiltonian parameters. The limit of a very large spin coupled to a small one is well described by a semiclassical approximation with
We study the integrability of the two-spin elliptic Gaudin model for arbitrary values of the Hamiltonian parameters. The limit of a very large spin coupled to a small one is well described by a semiclassical approximation with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f560608712f79c4233ef478fd30610d
Publikováno v:
Annals of Physics. 325:1340-1348
Fermion systems with more than two components can exhibit pairing condensates of much more complex structure than the well-known single BCS condensate of spin-up and spin-down fermions. In the framework of the exactly solvable SO(8) Richardson-Gaudin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05cc57df24ee29aa604327ccf2b5b8cc
https://doi.org/10.1016/j.aop.2010.02.015
https://doi.org/10.1016/j.aop.2010.02.015
Publikováno v:
International Journal of Modern Physics E. 17:2155-2159
Exactly solvable models have played an important role in helping to elucidate the physics of strongly correlated systems. Recently, we have extended the Richardson-Gaudin (RG) models of SU(2) like particle pairing to higher rank algebras. In particul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35ac7607457ab5f77a62528a89d416f9
https://doi.org/10.1142/s0218301308011264
https://doi.org/10.1142/s0218301308011264
Autor:
C. Esebbag, Jorge Dukelsky
The elliptic Gaudin model describes completely anisotropic spin systems with long range interactions. The model was proven to be quantum integrable by Gaudin and latter the exact solution was found by means of the algebraic Bethe ansatz. In spite of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b163826bc40c3c20964528a18a41495
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
6 págs.; 1 fig.; XXXVIII Symposium on Nuclear Physics (Cocoyoc 2015); Open Access funded by Creative Commons Atribution Licence 3.0
We consider the structure of the number projected BCS wave function in the particle-hole basis, and use it to st
We consider the structure of the number projected BCS wave function in the particle-hole basis, and use it to st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2db91a66c9ce40ab93bf3a5779f4575f
http://hdl.handle.net/10261/136871
http://hdl.handle.net/10261/136871
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
12 pages, 3 tables, 2 figures.--PACS nrs.: 02.30.Ik, 71.10.Li, 74.20.Fg.--Arxiv pre-print available at: http://arxiv.org/abs/math-ph/0609022
We study the Richardson equations close to the critical values of the pairing strength gc, where the occ
We study the Richardson equations close to the critical values of the pairing strength gc, where the occ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2357e3453e661b331aefb506dbda8643
https://doi.org/10.1088/0305-4470/39/37/002
https://doi.org/10.1088/0305-4470/39/37/002
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review Letters, 113(26), 267002
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Physical Review Letters, 113(26), 267002
5 págs.; 2 figs.; PACS numbers: 74.20.-z, 03.65.Vf, 74.45.+c, 74.90.+n
What distinguishes trivial superfluids from topological superfluids in interacting many-body systems where the number of particles is conserved? Building on a class of integ
What distinguishes trivial superfluids from topological superfluids in interacting many-body systems where the number of particles is conserved? Building on a class of integ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da239f998368f3baba42588ed2f4c645
http://hdl.handle.net/10261/120849
http://hdl.handle.net/10261/120849
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2011, 106, pp.129601. ⟨10.1103/PhysRevLett.106.129601⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review Letters, American Physical Society, 2011, 106, pp.129601. ⟨10.1103/PhysRevLett.106.129601⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Comentarios al artículo "Fermi-bose mixtures near broad interspecies feshbach resonances", Phys. Rev. Lett. 105, 195301 (2010); DOI: 10.1103/PhysRevLett.105.195301
This work is supported by the Spanish Ministry of Science and Innovation, Projec
This work is supported by the Spanish Ministry of Science and Innovation, Projec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63b97fe4bd860065614adfc6e7f6dce7
http://hal.in2p3.fr/in2p3-00582524
http://hal.in2p3.fr/in2p3-00582524
Autor:
C. Esebbag, J. L. Egido
Publikováno v:
Nuclear Physics A. 552:205-231
We analyze the use of particle-number projected statistics (PNPS) as an effective way to include the quantum and statistical fluctuations, associated with the pairing degree of freedom, left out in finite-temperature mean-field theories. As a numeric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a35b9027930f57293077ed2b102cbaa3
https://doi.org/10.1016/0375-9474(93)90464-9
https://doi.org/10.1016/0375-9474(93)90464-9