Contributor info: Mr Martin Will

Martin Will , Jamir Marino, Herwig Ott, Michael Fleischhauer

SciPost Phys. 14, 064 (2023) · published 6 April 2023 | Toggle abstract · pdf

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.