Discorrelated quantum states
Abstract
The statistical properties of photons are fundamental to investigating quantum mechanical phenomena using light. In multi-photon, two-mode systems, correlations may exist between outcomes of measurements made on each mode which exhibit useful properties. Correlation in this sense can be thought of as increasing the probability of a particular outcome of a measurement on one subsystem given a measurement on a correlated subsystem. Here, we show a statistical property we call "discorrelation," in which the probability of a particular outcome of one subsystem is reduced to zero, given a measurement on a discorrelated subsystem. We show how such a state can be constructed using readily available building blocks of quantum optics, namely coherent states, single photons, beam splitters and projective measurement. We present a variety of discorrelated states, show that they are entangled, and study their sensitivity to loss.
Cite
@article{arxiv.1606.04369,
title = {Discorrelated quantum states},
author = {Evan Meyer-Scott and Johannes Tiedau and Georg Harder and Lynden K. Shalm and Tim J. Bartley},
journal= {arXiv preprint arXiv:1606.04369},
year = {2017}
}
Comments
9 pages, 7 figures, updated to published version