Conditional generation of arbitrary multimode entangled states of light with linear optics
Jaromı́r Fiurášek, S. Massar, Nicolas J. Cerf · Physical Review A · 2003
We propose a universal scheme for the probabilistic generation of an arbitrary multimode entangled state of light with finite expansion in Fock basis. The suggested setup involves passive linear optics, single-photon sources, strong coherent laser beams, and photodetectors with single-photon resolution. The efficiency of this setup may be greatly enhanced if, in addition, a quantum memory is available.