Are there phase transitions in information space?

Abstract

The interplay between two basic quantities -- quantum communication and information -- is investigated. Quantum communication is an important resource for quantum states shared by two parties and is directly related to entanglement. Recently, the amount of local information that can be drawn from a state has been shown to be closely related to the non-local properties of the state. Here we consider both formation and extraction processes, and analyze informational resources as a function of quantum communication. The resulting diagrams in information space allow us to observe phase-like transitions when correlations become classical.

4 pages, 3 epsi figures, to appear in Phys. Rev. Lett

References in corpus (2)

• A Thermodynamical Approach to Quantifying Quantum Correlations
• Entanglement cost of mixed states

Cited by in corpus (6)

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• Distillation of local purity from quantum states
• A probabilistic and information theoretic interpretation of quantum evolutions
• Bounds on localisable information via semidefinite programming