Controlling superfluid flows using dissipative impurities

We propose and analyze a protocol to create and control the superfluid flow in a one dimensional, weakly interacting Bose gas by noisy point contacts. Considering first a single contact in a static or moving condensate, we identify three different dynamical regimes: I. a linear response regime, wher...

Full description

Saved in:
Bibliographic Details
Published inSciPost physics Vol. 14; no. 4; p. 064
Main Authors Will, Martin, Marino, Jamir, Ott, Herwig, Fleischhauer, Michael
Format Journal Article
LanguageEnglish
Published SciPost 01.04.2023
Online AccessGet full text

Cover

More Information
Summary:We propose and analyze a protocol to create and control the superfluid flow in a one dimensional, weakly interacting Bose gas by noisy point contacts. Considering first a single contact in a static or moving condensate, we identify three different dynamical regimes: I. a linear response regime, where the noise induces a coherent flow in proportion to the strength of the noise, II. a Zeno regime with suppressed currents, and III. a regime of continuous soliton emission. Generalizing to two point contacts in a condensate at rest we show that noise tuning can be employed to control or stabilize the superfluid transport of particles along the segment which connects them.
ISSN:2542-4653
2542-4653
DOI:10.21468/SciPostPhys.14.4.064