DECOHERENCE-FREE SUBSPACES FOR OPEN QUANTUM RANDOM WALKS ON GRAPHS
We study decoherence-free subspaces in a type of Quantum Markov Semigroups called continuous-time open quantum random walks on graphs. We measure the temporary changes of quantum correlations using geometric quantum discord with bures distance under some assumptions about the semigroup. In particula...
- Autores:
-
Agredo, J.
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2016
- Institución:
- Escuela Colombiana de Ingeniería Julio Garavito
- Repositorio:
- Repositorio Institucional ECI
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.escuelaing.edu.co:001/1400
- Acceso en línea:
- https://repositorio.escuelaing.edu.co/handle/001/1400
http://dx.doi.org/10.12732/ijpam.v109i4.16
- Palabra clave:
- Cuantización geométrica
Correlaciones cuánticas
Quantum Markov semigroup
Geometric quantum discord
Bures distance
Decoherence-free subspaces
Semigrupo cuántico de Markov
Discordancia cuántica geométrica
Distancia de Bures
Subespacios libres de decoherencia
- Rights
- openAccess
- License
- https://creativecommons.org/licenses/by/4.0/
| Summary: | We study decoherence-free subspaces in a type of Quantum Markov Semigroups called continuous-time open quantum random walks on graphs. We measure the temporary changes of quantum correlations using geometric quantum discord with bures distance under some assumptions about the semigroup. In particular, we characterize the decay of correlations to zero, showing that turns out to be closely related with the structure of decoherence-free subspace. |
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