2006/10/17 by Yan Li, Li, Yan, Hui Jing +3
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0610143
8 pages, 3 figures
arxiv created 2006/10/17 · arxiv updated 2009/12/01
We propose a simple scheme to generate an arbitrary photon-added coherent state of a travelling optical field by using only a set of degenerate parametric amplifiers and single-photon detectors. Particularly, when the single-photon-added coherent state (SPACS) is observed by following, e.g., the novel technique of Zavatta et al. (Science 306, 660 (2004)), we also obtain the generalized optical entangled W state. Finally, a qualitative analysis of possible losses in our scheme is given.