Atomic quantum dots coupled to a reservoir of a superfluid Bose-Einstein condensate
Year: 2005
Authors: Recati A., Fedichev P.O., Zwerger W., von Delft J., Zoller P.
Autors Affiliation: Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria;
CRS BEC-INFM, Povo and ECT*, Villazzano, I-38050 Trento, Italy;
Sektion Physik, Universität München, Theresienstrass 37/III, D-80333 München, Germany
Abstract: We study the dynamics of an atomic quantum dot, i.e., a single atom in a tight optical trap which is coupled to a superfluid reservoir via laser transitions. Quantum interference between the collisional interactions and the laser induced coupling results in a tunable dot-bath coupling, allowing an essentially complete decoupling from the environment. Quantum dots embedded in a 1D Luttinger liquid of cold bosonic atoms realize a spin-boson model with Ohmic coupling, which exhibits a dissipative phase transition and allows us to directly measure atomic Luttinger parameters.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 94 (4) Pages from: 040404-1 to: 040404-4
KeyWords: Spin-boson model; dissipative phase transition; Bosonic cold gasesDOI: 10.1103/PhysRevLett.94.040404ImpactFactor: 7.489Citations: 177data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-09-29References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here