Measuring the elements of the optical density matrix
量子物理
2009-11-07 v1
摘要
Most methods for experimentally reconstructing the quantum state of light involve determining a quasiprobability distribution such as the Wigner function. In this paper we present a scheme for measuring individual density matrix elements in the photon number state representation. Remarkably, the scheme is simple, involving two beam splitters and a reference field in a coherent state.
引用
@article{arxiv.quant-ph/0209132,
title = {Measuring the elements of the optical density matrix},
author = {K. L. Pregnell and D. T. Pegg},
journal= {arXiv preprint arXiv:quant-ph/0209132},
year = {2009}
}
备注
6 pages and 1 figure