Uniform cross phase modulation for nonclassical radiation pulses
Quantum Physics
2010-03-12 v1
Abstract
We propose a scheme to achieve a uniform cross phase modulation (XPM) for two nonclassical light pulses and study its application for quantum non-demolition measurements of the photon number in a pulse and for controlled phase gates in quantum information. We analyze the scheme by quantizing a common phenomenological model for classical XPM. Our analysis first treats the ideal case of equal cross-phase modulation and pure unitary dynamics. This establishes the groundwork for more complicated studies of non-unitary dynamics and difference in phase shifts between the two pulses where decohering effects severely affect the performance of the scheme.
Cite
@article{arxiv.1001.1893,
title = {Uniform cross phase modulation for nonclassical radiation pulses},
author = {Karl-Peter Marzlin and Zeng-Bin Wang and Sergey A. Moiseev and Barry C. Sanders},
journal= {arXiv preprint arXiv:1001.1893},
year = {2010}
}
Comments
11 pages, 4 figures. To appear in J. Opt. Soc. Am. B