Optomechanical signature of a frictionless flow of superfluid light
Authors: Larre PE., Carusotto I.
Autors Affiliation: Univ Trento, INO CNR BEC Ctr, I-38123 Povo, Italy; Univ Trento, Dipartimento Fis, I-38123 Povo, Italy
Abstract: We propose an experimental setup that should make it possible to reveal the frictionless flow of a superfluid of light from the suppression of the drag force that it exerts on a material obstacle. In the paraxial-propagation geometry considered here, the photon-fluid dynamics is described by a wave equation analogous to the Gross-Pitaevskii equation of dilute Bose-Einstein condensates and the obstacle consists in a solid dielectric slab immersed into a nonlinear optical liquid. By means of an ab initio calculation of the electromagnetic force experienced by the obstacle, we anticipate that superfluidity is detectable in state-of-the-art experiments from the disappearance of the optomechanical deformation of the obstacle.
Journal/Review: PHYSICAL REVIEW A
Volume: 91 (5) Pages from: 053809-1 to: 053809-10
KeyWords: BOGOLIUBOV DISPERSION-RELATION; CRITICAL VELOCITY; LIQUID-HELIUM; CONDENSATION; OBSTACLEDOI: 10.1103/PhysRevA.91.053809Citations: 15data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-17References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here