Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Winograd, Emilio Andres | - |
| dc.creator | Chitra, R. | - |
| dc.creator | Rozenberg, Marcelo Javier | - |
| dc.date | 2018-08-22T17:53:06Z | - |
| dc.date | 2018-08-22T17:53:06Z | - |
| dc.date | 2011-11 | - |
| dc.date | 2018-08-21T14:28:07Z | - |
| dc.date.accessioned | 2019-04-29T15:50:51Z | - |
| dc.date.available | 2019-04-29T15:50:51Z | - |
| dc.date.issued | 2011-11 | - |
| dc.identifier | Winograd, Emilio Andres; Chitra, R.; Rozenberg, Marcelo Javier; Orbital-selective crossover and Mott transitions in an asymmetric Hubbard model of cold atoms in optical lattices; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 84; 23; 11-2011; 233102-233105 | - |
| dc.identifier | 1098-0121 | - |
| dc.identifier | http://hdl.handle.net/11336/56618 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/303596 | - |
| dc.description | We study the asymmetric Hubbard model at half filling as a generic model to describe the physics of two species of repulsively interacting fermionic cold atoms in optical lattices. We use dynamical mean-field theory to obtain the paramagnetic phase diagram of the model as a function of temperature, interaction strength, and hopping asymmetry. A Mott transition with a region of two coexistent solutions is found for all nonzero values of the hopping asymmetry. At low temperatures the metallic phase is a heavy Fermi liquid, qualitatively analogous to the Fermi-liquid state of the symmetric Hubbard model. Above a coherence temperature, an orbital-selective crossover takes place, wherein one fermionic species effectively localizes, and the resulting bad metallic state resembles the non-Fermi-liquid state of the Falicov-Kimball model. We compute observables relevant to cold atom systems such as the double occupation, the specific heat, and entropy, and characterize their behavior in the different phases. © 2011 American Physical Society. | - |
| dc.description | Fil: Winograd, Emilio Andres. Universite Paris-sud Xi; Francia | - |
| dc.description | Fil: Chitra, R.. Universite Pierre et Marie Curie; Francia | - |
| dc.description | Fil: Rozenberg, Marcelo Javier. Universite Paris-sud Xi; Francia. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | American Physical Society | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.84.233102 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.84.233102 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | Strongly correlated electrons | - |
| dc.subject | Optical lattices | - |
| dc.subject | Cold atoms | - |
| dc.subject | Astronomía | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Orbital-selective crossover and Mott transitions in an asymmetric Hubbard model of cold atoms in optical lattices | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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