Impact of trans-Planckian excitations on black-hole radiation in dipolar condensates

Ribeiro, Caio Cesar Holanda; Fischer, Uwe R.

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Campo DC	Valor	Idioma
dc.contributor.author	Ribeiro, Caio Cesar Holanda	-
dc.contributor.author	Fischer, Uwe R.	-
dc.date.accessioned	2025-02-03T13:29:18Z	-
dc.date.available	2025-02-03T13:29:18Z	-
dc.date.issued	2023-06-21	-
dc.identifier.citation	RIBEIRO, Caio C. Holanda; FISCHER, Uwe R. Impact of trans-Planckian excitations on black-hole radiation in dipolar condensates. Physical Review D, [S. l.], v. 107, L121502, 2023. DOI: https://doi.org/10.1103/PhysRevD.107.L121502.	pt_BR
dc.identifier.uri	http://repositorio.unb.br/handle/10482/51435	-
dc.language.iso	eng	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Impact of trans-Planckian excitations on black-hole radiation in dipolar condensates	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Condensados de Bose-Einstein	pt_BR
dc.subject.keyword	Buracos negros (Astronomia)	pt_BR
dc.identifier.doi	https://doi.org/10.1103/PhysRevD.107.L121502	pt_BR
dc.relation.publisherversion	https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.L121502	pt_BR
dc.description.abstract1	We consider a quasi-one-dimensional dipolar condensate in a steplike analog black hole setup. It is shown that the existence of roton excitations leaves significant imprints onto the Hawking radiation spectrum. The emitted radiation depends on the depth of the roton minimum, and is in general more intense. In addition, we find a novel spontaneous particle creation mechanism with no counterpart in nondipolar condensates. Our results establish that dipolar condensates offer a richer and more versatile environment for the simulation of particle production from the quantum vacuum in the presence of horizon interfaces than contact-interaction condensates.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-9874-9639	pt_BR
dc.contributor.affiliation	Seoul National University, Department of Physics and Astronomy, Center for Theoretical Physics	pt_BR
dc.contributor.affiliation	University of Brasilia, Institute of Physics	pt_BR
dc.contributor.affiliation	Seoul National University, Department of Physics and Astronomy, Center for Theoretical Physics	pt_BR
dc.description.unidade	Instituto de Física (IF)	pt_BR
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