arXiv:quant-ph/0001065 · Physical Review A
Optical Fock-state synthesizer
Giacomo Mauro D’Ariano, Lorenzo Maccone, Matteo G. A. Paris, Massimiliano Federico Sacchi
Abstract
We suggest a tunable optical device to synthesize Fock states and their superpositions starting from a coherent source. The scheme involves an avalanche-triggering photodetector and a ring cavity coupled to a traveling wave through a cross-Kerr medium. Low quantum efficiency at the photodetector improves the synthesizing quality at the expense of reducing the synthesizing rate.