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Wigner formalism for a particle on an infinite lattice: dynamics and spin
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Wigner formalism for a particle on an infinite lattice: dynamics and spin
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| dc.contributor.author | Hinarejos Doménech, Margarida | |
| dc.contributor.author | Bañuls Polo, María Carmen | |
| dc.contributor.author | Pérez Cañellas, Armando | |
| dc.date.accessioned | 2015-04-10T06:22:40Z | |
| dc.date.available | 2015-04-10T06:22:40Z | |
| dc.date.issued | 2015 | |
| dc.identifier.citation | Hinarejos Doménech, Margarida Bañuls Polo, María Carmen Pérez Cañellas, Armando 2015 Wigner formalism for a particle on an infinite lattice: dynamics and spin New Journal of Physics 17 013037-1 013037-16 | |
| dc.identifier.uri | http://hdl.handle.net/10550/42964 | |
| dc.description.abstract | The recently proposed Wigner function for a particle in an infinite lattice (Hinarejos M, Banuls MC and Perez A 2012 New J. Phys. 14 103009) is extended here to include an internal degree of freedom as spin. This extension is made by introducing a Wigner matrix. The formalism is developed to account for dynamical processes, with or without decoherence. We show explicit solutions for the case of Hamiltonian evolution under a position-dependent potential, and for evolution governed by a master equation under some simple models of decoherence, for which the Wigner matrix formalism is well suited. Discrete processes are also discussed. Finally, we discuss the possibility of introducing a negativity concept for the Wigner function in the case where the spin degree of freedom is included. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | New Journal of Physics, 2015, vol. 17, p. 013037-1-013037-16 | |
| dc.subject | Física | |
| dc.title | Wigner formalism for a particle on an infinite lattice: dynamics and spin | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-04-10T06:22:40Z | |
| dc.identifier.doi | 10.1088/1367-2630/17/1/013037 | |
| dc.identifier.idgrec | 102011 | |
| dc.rights.accessRights | open access | es_ES |
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