Discrete Wigner functions and the phase space representation of quantum computers

We show how to represent the state and the evolution of a quantum computer (or any system with an N-dimensional Hilbert space) in phase space. For this purpose we use a discrete version of the Wigner function which, for arbitrary N, is defined in a phase space grid of 2N × 2N points. We compute such...

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Autores principales: Bianucci, P., Miquel, C., Paz, J.P., Saraceno, M.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03759601_v297_n5-6_p353_Bianucci
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