Robust spin squeezing via photon-mediated interactions on an optical clock transition
Quantum Physics
2018-08-22 v1 Quantum Gases
Atomic Physics
Abstract
Cavity-QED is a promising avenue for the deterministic generation of entangled and spin-squeezed states for quantum metrology. One archetypal scheme generates squeezing via collective one-axis twisting interactions. However, we show that in implementations using optical transitions in long-lived atoms the achievable squeezing is fundamentally limited by collectively enhanced emission into the cavity mode which is generated in parallel with the cavity-mediated spin-spin interactions. We propose an alternative scheme which generates a squeezed state that is protected from collective emission, and investigate its sensitivity to realistic sources of experimental noise and imperfections.
Cite
@article{arxiv.1804.06784,
title = {Robust spin squeezing via photon-mediated interactions on an optical clock transition},
author = {R. J. Lewis-Swan and M. A. Norcia and J. R. K. Cline and J. K. Thompson and A. M. Rey},
journal= {arXiv preprint arXiv:1804.06784},
year = {2018}
}
Comments
5 pages + 9 pages SM, 2 + 5 figures