Enhancing sensitivity to rotations with quantum solitonic currents

• DOI: 10.21468/scipostphys.12.4.138
• Publication Date: 2022-05-10T13:01:40Z
• Authors: Piero Naldesi; Juan Polo; Vanja Dunjko; Hélène Perrin; Maxim Olshanii; Luigi Amico; Anna Minguzzi
• Keywords: [PHYS]Physics [physics]; Quantum Gases (cond-mat.quant-gas); Physics; QC1-999; 0103 physical sciences; FOS: Physical sciences; 190; Condensed Matter - Quantum Gases; 01 natural sciences

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