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Enhancing sensitivity to rotations with quantum solitonic currents

by P. Naldesi, J. Polo, V. Dunjko, H. Perrin, M. Olshanii, L. Amico and A. Minguzzi

Submission summary

As Contributors: Anna Minguzzi · Piero Naldesi · Maxim Olshanii · Juan Polo
Preprint link: scipost_202010_00006v2
Date submitted: 2021-11-25 09:33
Submitted by: Naldesi, Piero
Submitted to: SciPost Physics
Academic field: Physics
  • Quantum Physics
Approach: Theoretical


We study a gas of attracting bosons confined in a ring shape potential pierced by an artificial magnetic field. Because of attractive interactions, quantum analogs of bright solitons are formed. As a genuine quantum-many-body feature, we demonstrate that angular momentum fractionalization occurs and that such effect manifests on time of flight measurements. As a consequence, the matter-wave current in our system can react to very small changes of rotation or other artificial gauge fields. We work out a protocol to entangle such quantum solitonic currents, allowing to operate rotation sensors and gyroscopes to Heisenberg-limited sensitivity. Therefore, we demonstrate that the specific coherence and entanglement properties of the system can induce an enhancement of sensitivity to an external rotation.

Current status:
Editor-in-charge assigned

Author comments upon resubmission

Dear Editors,

We are grateful to all the referees for their careful reading and assessment of our paper.
We have addressed all the comments/criticisms made by the Referees in this response and in the revised version of the manuscript.
We hope that the paper can now be considered for publication.

Yours sincerely,
Piero Naldesi on behalf of the authors.

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