Article
 

Complementarity of quantum discord and classically accessible information

Público Deposited

Contenido Descargable

Descargar PDF
https://ir.library.oregonstate.edu/concern/articles/m039k5357

Descriptions

Attribute NameValues
Creator
Abstract
  • The sum of the Holevo quantity (that bounds the capacity of quantum channels to transmit classical information about an observable) and the quantum discord (a measure of the quantumness of correlations of that observable) yields an observable-independent total given by the quantum mutual information. This split naturally delineates information about quantum systems accessible to observers - information that is redundantly transmitted by the environment - while showing that it is maximized for the quasi-classical pointer observable. Other observables are accessible only via correlations with the pointer observable. We also prove an anti-symmetry property relating accessible information and discord. It shows that information becomes objective - accessible to many observers - accessible as quantum information is relegated to correlations with the global environment, and, therefore, locally inaccessible. The resulting complementarity explains why, in a quantum Universe, we perceive objective classical reality while flagrantly quantum superpositions are out of reach.
  • Keywords: States, Decoherence, Physical reality, Darwinism, Einselection, Mechanical description
License
Resource Type
DOI
Fecha Disponible
Fecha de Emisión
Citation
  • Zwolak, M., & Zurek, W. H. (2013). Complementarity of quantum discord and classically accessible information. Scientific Reports, 3, 1729. doi:10.1038/srep01729
Journal Title
Journal Volume
  • 3
Academic Affiliation
Declaración de derechos
Funding Statement (additional comments about funding)
  • This research is supported in part by the U.S. Department of Energy through the LANL/LDRD Program and in part by the John Templeton Foundation.
Publisher
Peer Reviewed
Language
Replaces

Relaciones

Parents:

This work has no parents.

Elementos

Miniatura Título Fecha de subida Visibilidad Acciones
file details ZwolakMichaelPhysicsComplementarityQuantumDiscord.pdf 2017-07-08 Público Descargar