Strong Quantum Spin Correlations Observed in Atomic Spin Mixing
Quantum Gases
2015-05-30 v1 Atomic Physics
Quantum Physics
Abstract
We have observed sub-Poissonian spin correlations generated by collisionally induced spin mixing in a spin-1 Bose-Einstein condensate. We measure a quantum noise reduction of -7 dB (-10 dB corrected for detection noise) below the standard quantum limit (SQL) for the corresponding coherent spin states. The spin fluctuations are detected as atom number differences in the spin states using fluorescent imaging that achieves a detection noise floor of 8 atoms per spin component for a probe time of 100 s.
Cite
@article{arxiv.1109.2185,
title = {Strong Quantum Spin Correlations Observed in Atomic Spin Mixing},
author = {Eva M. Bookjans and Christopher D. Hamley and Michael S. Chapman},
journal= {arXiv preprint arXiv:1109.2185},
year = {2015}
}
Comments
5 pages, 4 figures