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Quantum-state engineering with continuous-variable postselection

Lance, Andrew; Jeong, Hyunseok; Grosse, Nicolai; Symul, Thomas; Ralph, Timothy Cameron; Lam, Ping Koy


We present a scheme to conditionally engineer an optical quantum system via continuous-variable measurements. This scheme yields high-fidelity squeezed single photons and a superposition of coherent states, from input single- and two-photon Fock states, respectively. The input Fock state is interacted with an ancilla squeezed vacuum state using a beam splitter. We transform the quantum system by postselecting on the continuous-observable measurement outcome of the ancilla state. We...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.73.041801


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