Dynamical generation of phase-squeezed states in a two-component Bose-Einstein condensates
Quantum Gases
2010-12-23 v2 Atomic Physics
Quantum Physics
Abstract
As an "input" state of a linear (Mach-Zehnder or Ramsey) interferometer, the phase-squeezed state proposed by Berry and Wiseman exhibits the best sensitivity approaching to the Heisenberg limit [Phys. Rev. Lett. 85, 5098 (2000)]. In this paper, we find that it can be generated dynamically with atomic Bose-Einstein condensates confined in a symmetric double well. Similar with the Berry and Wiseman's state, the prepared states show the squeezing along spin operator S_y and the anti-squeezing along S_z, leading to a sub-shot-noise of the phase sensitivity.
Cite
@article{arxiv.1011.3201,
title = {Dynamical generation of phase-squeezed states in a two-component Bose-Einstein condensates},
author = {G. R. Jin and Y. An and T. Yan and Z. S. Lu},
journal= {arXiv preprint arXiv:1011.3201},
year = {2010}
}
Comments
6.2 pages, 4 figures