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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Detalles Bibliográficos
Autores principales:	López, Cecilia Carolina, Paz, Juan Pablo
Publicado:	2003
Materias:	Algorithms Diffusion Eigenvalues and eigenfunctions Fourier transforms Functions Matrix algebra Phase space methods Wave interference Quantum walks Wigner functions Quantum theory
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523051_Lopez http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p523051_Lopez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_10502947_v68_n5_p523051_Lopez
record_format	dspace
spelling	paper:paper_10502947_v68_n5_p523051_Lopez2023-06-08T16:02:09Z Phase-space approach to the study of decoherence in quantum walks López, Cecilia Carolina Paz, Juan Pablo 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. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523051_Lopez 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, Cecilia Carolina Paz, Juan Pablo 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.
author	López, Cecilia Carolina Paz, Juan Pablo
author_facet	López, Cecilia Carolina Paz, Juan Pablo
author_sort	López, Cecilia Carolina
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
publishDate	2003
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v68_n5_p523051_Lopez http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p523051_Lopez
work_keys_str_mv	AT lopezceciliacarolina phasespaceapproachtothestudyofdecoherenceinquantumwalks AT pazjuanpablo phasespaceapproachtothestudyofdecoherenceinquantumwalks
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Phase-space approach to the study of decoherence in quantum walks

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