Zobrazeno 1 - 10
of 25
pro vyhledávání: '"B. Errea"'
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
Publikováno v:
International Journal of Modern Physics E. 16:210-221
We review the development of the microscopic BCS theory of superconductivity and the exact solution of the pairing Hamiltonian given by Richardson in 1963. We then introduce the generalized Richardson-Gaudin exactly-solvable pairing models for SU(2)
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https://explore.openaire.eu/search/publication?articleId=doi_________::52866ed020262b61c456693a6e34b97e
https://doi.org/10.1142/s0218301307005545
https://doi.org/10.1142/s0218301307005545
Publikováno v:
international Journal of Modern Physics E
International Conference on Frontiers of Nuclear Structure (PartII)
International Conference on Frontiers of Nuclear Structure (PartII), Jun 2006, Shangai, China. pp.1665-1679, ⟨10.1142/S0218301306005289⟩
International Conference on Frontiers of Nuclear Structure (PartII)
International Conference on Frontiers of Nuclear Structure (PartII), Jun 2006, Shangai, China. pp.1665-1679, ⟨10.1142/S0218301306005289⟩
International audience; We first review the development of the Richardson-Gaudin exactly-solvable pairing models and then discuss several new models based on rank-two algebras and their applications to problems in nuclear structure.
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8800c230b85e1a08ced5e8868e96f46f
https://doi.org/10.1142/s0218301306005289
https://doi.org/10.1142/s0218301306005289
Autor:
B. Errea, S. Lerma, J. A. Caballero, C. E. Alonso, M. V. Andrés, J. E. García Ramos, F. Pérez-Bernal
Publikováno v:
AIP Conference Proceedings.
A Richardson‐Gaudin exactly‐solvable model is presented for an isovector‐isoscalar pairing interaction. Exact results show the existence of quartet correlations at T = 0, that disappear at higher T where two condensates of identical particles c
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https://explore.openaire.eu/search/publication?articleId=doi_________::c6d385197bf721e1fbaa72b8fcd51462
https://doi.org/10.1063/1.3428914
https://doi.org/10.1063/1.3428914
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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We introduce an exactly solvable model for trapped three-color atom gases. Application to a system of cigar-shaped trapped cold fermions reveals a complex structure of breached pairing phases. We find two competing superfluid phases at weak and inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e40e5d37d815853f9adf6f1aad58519
https://doi.org/10.1103/physreva.79.051603
https://doi.org/10.1103/physreva.79.051603
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
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The particle number projected BCS (PBCS) approximation is tested against the exact solution of the SO(5) Richardson-Gaudin model for isovector pairing in a system of nondegenerate single-particle orbits. Two isovector PBCS wave functions are consider
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee412c861ba2cb45f503f4d1fcc9d1da
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
4 pages, 2 figures.-- PACS nrs.: 21.60.Fw; 02.30.Ik; 74.20.Rp.
The exact solution of the proton-neutron isoscalar-isovector (T=0,1) pairing Hamiltonian with nondegenerate single-particle orbits and equal pairing strengths is presented for the fi
The exact solution of the proton-neutron isoscalar-isovector (T=0,1) pairing Hamiltonian with nondegenerate single-particle orbits and equal pairing strengths is presented for the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b0758bf6a30ea6dcb92297cc512732d
http://arxiv.org/abs/nucl-th/0703061
http://arxiv.org/abs/nucl-th/0703061
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review C
Physical Review C, American Physical Society, 2006, 74, pp.1024314. ⟨10.1103/PhysRevC.74.024314⟩
Physical Review C, 2006, 74, pp.1024314. ⟨10.1103/PhysRevC.74.024314⟩
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Physical Review C
Physical Review C, American Physical Society, 2006, 74, pp.1024314. ⟨10.1103/PhysRevC.74.024314⟩
Physical Review C, 2006, 74, pp.1024314. ⟨10.1103/PhysRevC.74.024314⟩
7 pages, 2 tables, 3 figures.-- PACS nrs.: 21.60.Fw; 21.60.Ev; 03.65.Fd.-- ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0605011v1
We describe a class of exactly-solvable models of interacting bosons based on the algebra SO(3,2). Ea
We describe a class of exactly-solvable models of interacting bosons based on the algebra SO(3,2). Ea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8356feff7e12a5693f2c12e25f05342b
http://hdl.handle.net/10261/15638
http://hdl.handle.net/10261/15638
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
4 pages, 3 figures.-- PACS nrs.: 21.60.Fw; 03.65.-w; 27.50.+e; 74.20.Rp.-- ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0703061
The complete exact solution of the T=1 neutron-proton pairing Hamiltonian is presented in the context o
The complete exact solution of the T=1 neutron-proton pairing Hamiltonian is presented in the context o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10a80d198d297782029690c3fe028e7b
http://hdl.handle.net/10261/15635
http://hdl.handle.net/10261/15635