Positive Wigner Function Transformation by Quantum Operations

This Demonstration shows the transformation of the Wigner function as two individual coherent modes are mixed by changing their local interaction parameters. The result can be interpreted as a non-trivial violation of Bell's inequality. The figure is drawn for , a measure of Alice's and Bob's hidden variables.



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Please refer to "Positive Phase Space Transformation Incompatible with Classical Physics" at arXiv:0810.1457 for details.
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