Orientation-Dependent Entanglement Lifetime in a Squeezed Atomic Clock
Quantum Physics
2014-11-20 v1
Abstract
We study experimentally the lifetime of a special class of entangled states in an atomic clock, squeezed spin states. In the presence of anisotropic noise, their lifetime is strongly dependent on squeezing orientation. We measure the Allan deviation spectrum of a clock operated with a phase-squeezed input state. For integration times up to 50 s the squeezed clock achieves a given precision 2.8(3) times faster than a clock operating at the standard quantum limit.
Keywords
Cite
@article{arxiv.1004.1725,
title = {Orientation-Dependent Entanglement Lifetime in a Squeezed Atomic Clock},
author = {Ian D. Leroux and Monika H. Schleier-Smith and Vladan Vuletić},
journal= {arXiv preprint arXiv:1004.1725},
year = {2014}
}
Comments
4 pages, 3 figures