Phase-space approach to the study of decoherence in quantum walks
The quantum walk on a cycle is analyzed using discrete Wigner functions as a way to represent the states and the evolution of the walker. Phase-space distributions are used to represent the quantum states of the walker. The behavior of the system when the quantum coin carried by the walker interacts...
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p523051_Lopez |
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todo:paper_10502947_v68_n5_p523051_Lopez2023-10-03T15:59:34Z Phase-space approach to the study of decoherence in quantum walks López, C.C. Paz, J.P. Algorithms Diffusion Eigenvalues and eigenfunctions Fourier transforms Functions Matrix algebra Phase space methods Wave interference Quantum walks Wigner functions Quantum theory The quantum walk on a cycle is analyzed using discrete Wigner functions as a way to represent the states and the evolution of the walker. Phase-space distributions are used to represent the quantum states of the walker. The behavior of the system when the quantum coin carried by the walker interacts with an environment is studied. It is shown that for this system, quantum coherence is robust for initially delocalized states of the walker. Fil:López, C.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Paz, J.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p523051_Lopez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Algorithms Diffusion Eigenvalues and eigenfunctions Fourier transforms Functions Matrix algebra Phase space methods Wave interference Quantum walks Wigner functions Quantum theory |
| spellingShingle |
Algorithms Diffusion Eigenvalues and eigenfunctions Fourier transforms Functions Matrix algebra Phase space methods Wave interference Quantum walks Wigner functions Quantum theory López, C.C. Paz, J.P. Phase-space approach to the study of decoherence in quantum walks |
| topic_facet |
Algorithms Diffusion Eigenvalues and eigenfunctions Fourier transforms Functions Matrix algebra Phase space methods Wave interference Quantum walks Wigner functions Quantum theory |
| description |
The quantum walk on a cycle is analyzed using discrete Wigner functions as a way to represent the states and the evolution of the walker. Phase-space distributions are used to represent the quantum states of the walker. The behavior of the system when the quantum coin carried by the walker interacts with an environment is studied. It is shown that for this system, quantum coherence is robust for initially delocalized states of the walker. |
| format |
JOUR |
| author |
López, C.C. Paz, J.P. |
| author_facet |
López, C.C. Paz, J.P. |
| author_sort |
López, C.C. |
| title |
Phase-space approach to the study of decoherence in quantum walks |
| title_short |
Phase-space approach to the study of decoherence in quantum walks |
| title_full |
Phase-space approach to the study of decoherence in quantum walks |
| title_fullStr |
Phase-space approach to the study of decoherence in quantum walks |
| title_full_unstemmed |
Phase-space approach to the study of decoherence in quantum walks |
| title_sort |
phase-space approach to the study of decoherence in quantum walks |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p523051_Lopez |
| work_keys_str_mv |
AT lopezcc phasespaceapproachtothestudyofdecoherenceinquantumwalks AT pazjp phasespaceapproachtothestudyofdecoherenceinquantumwalks |
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1782023887334146048 |