Scientific Results

Casimir forces and quantum friction from Ginzburg radiation in atomic BECs

Year: 2017

Authors: Marino J., Recati A., Carusotto I.

Autors Affiliation: Institute of Theoretical Physics, TU Dresden, D-01062 Dresden, Germany; INO-CNR BEC Center and Dipartimento di Fisica, Universita` di Trento, 38123 Povo, Italy

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 emis- sion of Bogoliubov quanta. Observable consequences of these quantum vacuum effects in realistic spectroscopic experiments are discussed.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 118 (4)      Pages from: 045301-1  to: 045301-6

KeyWords: Cold Gases; Ginzburg Radiation; Dissipative Casimir effect
DOI: 10.1103/PhysRevLett.118.045301

Citations: 26
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-24
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here

gdpr-image
This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more