We propose a technique to probe the quantum state of light in an optical cavity without significantly altering it. We minimize the interaction of the probe with the field by arranging a setting where the largest contribution to the transition probability is cancelled. We show that we obtain a very good resolution to measure photon population differences between two given Fock states by means of atomic interferometry.
@article{arxiv.1309.2607,
title = {Mode Invisibility and Single Photon Detection},
author = {Marvellous Onuma-Kalu and Robert B. Mann and Eduardo Martin-Martinez},
journal= {arXiv preprint arXiv:1309.2607},
year = {2013}
}
Comments
12 pages, 5 figures. RevTex 4.1. Added appendix with further mathematical detail. Updated to match published version