Schrödinger kittens and higher-order Fock states : generation and detection of propagating light fields with negative Wigner functions

Alexei Ourjoumtsev; Aurélien Dantan; Rosa Tualle-Brouri; Philippe Grangier

doi:10.1364/LS.2006.LTuD2

Frontiers in Optics
OSA Technical Digest (CD) (Optica Publishing Group, 2006),
paper LTuD2
•https://doi.org/10.1364/LS.2006.LTuD2

Schrödinger kittens and higher-order Fock states : generation and detection of propagating light fields with negative Wigner functions

Alexei Ourjoumtsev, Aurélien Dantan, Rosa Tualle-Brouri, and Philippe Grangier

Laser Science 2006

Rochester, New York United States
ISBN: 1-55752-818-7

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Quantum Optics I (LTuD)

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A. Ourjoumtsev, A. Dantan, R. Tualle-Brouri, and P. Grangier, "Schrödinger kittens and higher-order Fock states : generation and detection of propagating light fields with negative Wigner functions," in Frontiers in Optics, OSA Technical Digest (CD) (Optica Publishing Group, 2006), paper LTuD2.

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Abstract

We describe recent progress in the experimental realization of propagating light fields with observed negative Wigner functions, measured by pulsed homodyne quantum tomography. This includes in particular Schrödinger cat states with small amplitudes ("Schrödinger kittens") [1], and n=2 Fock states [2]. Quantum information applications of such states will be discussed, such as loophole-free tests of Bell's inequalities [3].

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