Single-Particle Decoherence Can Improve Spin-Squeezing Generated In Collective Dynamics
Abstract
We study the generation of spin-squeezing in arrays of long-lived dipoles subject to collective emission, coherent drive, elastic interactions, and spontaneous emission. Counter-intuitively, it is found that the introduction of spontaneous emission leads to an enhancement of the achievable spin-squeezing, relative to that which emerges in the steady-state of the purely collective dynamics for the same model parameters. This behavior is connected to the dynamical self-tuning of the system through a dissipative phase transition that is present in the collective system alone. Our findings will be applicable to next-generation quantum sensors harnessing correlated quantum matter, including cavity-QED and trapped ion systems.
Cite
@article{arxiv.1911.09617,
title = {Single-Particle Decoherence Can Improve Spin-Squeezing Generated In Collective Dynamics},
author = {K. Tucker and D. Barberena and R. J. Lewis-Swan and J. K. Thompson and J. G. Restrepo and A. M. Rey},
journal= {arXiv preprint arXiv:1911.09617},
year = {2020}
}
Comments
5+4 pages, 3+2 figures