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dc.contributor.author
Cuestas, María Eloisa
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dc.contributor.author
Bouvrie, P. Alexander
dc.contributor.author
Majtey, Ana Paula
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dc.date.available
2021-10-18T17:53:11Z
dc.date.issued
2020-03-30
dc.identifier.citation
Cuestas, María Eloisa; Bouvrie, P. Alexander; Majtey, Ana Paula; Fermionic versus bosonic behavior of confined Wigner molecules; American Physical Society; Physical Review A; 101; 3; 30-3-2020; 1-11
dc.identifier.issn
2469-9926
dc.identifier.uri
http://hdl.handle.net/11336/144137
dc.description.abstract
We assess whether a confined Wigner molecule constituted by 2N fermions behaves as N bosons or 2N fermions. Following the work by Law [Phys. Rev. A 71, 034306 (2005)PLRAAN1050-294710.1103/PhysRevA.71.034306] and Chudzicki et al. [Phys. Rev. Lett. 104, 070402 (2010)PRLTAO0031-900710.1103/PhysRevLett.104.070402] we discuss the physical meaning and the reason why a large amount of entanglement is needed in order to ensure a bosonic composite behavior. By applying a composite boson ansatz, we found that a Wigner molecule confined in a two-dimensional trap presents a bosonic behavior induced by symmetry. The two-particle Wigner molecule ground state required by the composite boson ansatz was obtained within the harmonic approximation in the strong interacting regime. Our approach allows us to address few-particle states (widely studied within a variety of theoretical and numerical techniques) as well as a large number of particles (difficult to address due to computational costs). For a large number of particles, we found strong fermionic correlations exposed by the suppression of particle fluctuations. For a small number of particles, we show that the wave function calculated within the composite boson ansatz captures the Friedel-Wigner transition. The latter is shown in a regime in which strong correlations due to the Pauli exclusion principle arise; therefore, we conclude that the coboson ansatz reproduces the many-particle physics of a confined Wigner molecule, even in the presence of strong deviations of the ideal bosonic behavior due to fermionic correlations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
WIGNER MOLECULE
dc.subject
COBOSON ANSATZ
dc.subject
ENTANGLEMENT
dc.subject.classification
Otras Ciencias Físicas
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Fermionic versus bosonic behavior of confined Wigner molecules
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-01T15:30:28Z
dc.identifier.eissn
2469-9934
dc.journal.volume
101
dc.journal.number
3
dc.journal.pagination
1-11
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Maryland
dc.description.fil
Fil: Cuestas, María Eloisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
dc.description.fil
Fil: Bouvrie, P. Alexander. Universidad de Granada. Facultad de Ciencias; España
dc.description.fil
Fil: Majtey, Ana Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
dc.journal.title
Physical Review A
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.101.033620
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2004.09400
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1103/PhysRevA.101.033620
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