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A Study of Wigner Functions for Discrete-Time Quantum Walks
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A Study of Wigner Functions for Discrete-Time Quantum Walks
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| Hinarejos Doménech, Margarida; Bañuls Polo, María Carmen; Pérez Cañellas, Armando | |||
| This document is a artículoDate2013 | |||
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Este documento está disponible también en : http://hdl.handle.net/10550/42960 |
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| We perform a systematic study of the discrete time Quantum Walk on one dimension using Wigner functions, which are generalized to include the chirality (or coin) degree of freedom. In particular, we analyze the evolution of the negative volume in phase space, as a function of time, for different initial states. This negativity can be used to quantify the degree of departure of the system from a classical state. We also relate this quantity to the entanglement between the coin and walker subspaces. | |||
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Hinarejos Doménech, Margarida Bañuls Polo, María Carmen Pérez Cañellas, Armando 2013 A Study of Wigner Functions for Discrete-Time Quantum Walks Journal Of Computational And Theoretical Nanoscience 10 7- SI 1626 1633 |
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| http://dx.doi.org/10.1166/jctn.2013.3101 |
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22 - Física [3703]