Universität zu Köln

Marino, Jamir, Recati, Alessio and Carusotto, Iacopo (2017). Casimir Forces and Quantum Friction from Ginzburg Radiation in Atomic Bose-Einstein Condensates. Phys. Rev. Lett., 118 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

We theoretically propose an experimentally viable scheme to use an impurity atom in an atomic Bose-Einstein condensate, in order to realize condensed-matter analogs of quantum vacuum effects. In a suitable atomic level configuration, the collisional interaction between the impurity atom and the density fluctuations in the condensate can be tailored to closely reproduce the electric-dipole coupling of quantum electrodynamics. By virtue of this analogy, we recover and extend the paradigm of electromagnetic vacuum forces to the domain of cold atoms, showing in particular the emergence, at supersonic atomic speeds, of a novel power-law scaling of the Casimir force felt by the atomic impurity, as well as the occurrence of a quantum frictional force, accompanied by the Ginzburg emission of Bogoliubov quanta. Observable consequences of these quantum vacuum effects in realistic spectroscopic experiments are discussed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Marino, Jamir UNSPECIFIED UNSPECIFIED UNSPECIFIED Recati, Alessio UNSPECIFIED UNSPECIFIED UNSPECIFIED Carusotto, Iacopo UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-242160
DOI:	10.1103/PhysRevLett.118.045301
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	118
Number:	4
Date:	2017
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language FIELD Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/24216