Author(s): Ourjoumtsev A, TualleBrouri R, Laurat J, Grangier P
Abstract Share this page
Abstract We present a detailed experimental analysis of a free-propagating light pulse prepared in a "Schr√∂dinger kitten" state, which is defined as a quantum superposition of "classical" coherent states with small amplitudes. This kitten state is generated by subtracting one photon from a squeezed vacuum beam, and it clearly presents a negative Wigner function. The predicted influence of the experimental parameters is in excellent agreement with the experimental results. The amplitude of the coherent states can be amplified to transform our "Schr√∂dinger kittens" into bigger Schr√∂dinger cats, providing an essential tool for quantum information processing.
This article was published in Science
and referenced in Journal of Lasers, Optics & Photonics