Quantum-enhanced interferometry with asymmetric beam splitters
Quantum Physics
2020-01-03 v1
Abstract
In this paper, we investigate the phase sensitivities in two-path optical interferometry with asymmetric beam splitters. Here, we present the optimal conditions for the transmission ratio and the phase of the beam splitter to gain the highest sensitivities for a general class of non-classical states with parity symmetry. Additionally, we address the controversial question of whether the scheme with a combination of coherent state and photon-added or photon-subtracted squeezed vacuum state is better or worse than the most celebrated one using a combination of coherent state and squeezed vacuum state.
Cite
@article{arxiv.2001.00302,
title = {Quantum-enhanced interferometry with asymmetric beam splitters},
author = {Wei Zhong and Fan Wang and Lan Zhou and Peng Xu and Yu-Bo Sheng},
journal= {arXiv preprint arXiv:2001.00302},
year = {2020}
}
Comments
11 pages, 3 figures