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Asia Communications and Photonics Conference

Entanglement Generation with Schrödinger Kitten States

Hongbin Song, Guofeng Zhang, Hidehiro Yonezawa

Published Nov 5, 2022• 3 citations
Publisher

Abstract

We present a protocol to generate quantum entanglement with Schrödinger Kitten States. Stronger quantum entanglement than photon-subtracted two-mode squeezed vacuum states (PSTMSV) and TMSV are obtained for squeezing level below -5.12 dB.
DOI
10.1109/acp55869.2022.10089128

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We present a detailed experimental analysis of a free-propagating light pulse prepared in a "Schrödinger 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 "Schrödinger kittens" into bigger Schrödinger cats, providing an essential tool for quantum information processing.
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