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Entanglement measures and purification procedures
We improve previously proposed conditions each measure of entanglement has to satisfy. We present a class of entanglement measures that satisfy these conditions and show that the quantum relative…
Classical, quantum and total correlations
We discuss the problem of separating consistently the total correlations in a bipartite quantum state into a quantum and a purely classical part. A measure of classical correlations is proposed and…
Entanglement in Many-Body Systems
The recent interest in aspects common to quantum information and condensed matter has prompted a flory of activity at the border of these disciplines that were far distant untill few years ago.…
Introduction to Quantum Information Science
- V. Vedral
- Physics, Computer Science
This chapter discusses quantum entanglement, computation and quantum measurements, as well as classical and quantum mechanics, and some of the algorithms used to solve these problems.
The classical-quantum boundary for correlations: Discord and related measures
One of the best signatures of nonclassicality in a quantum system is the existence of correlations that have no classical counterpart. Different methods for quantifying the quantum and classical…
We have witnessed great advances in quantum information theory in recent years. There are two distinct directions in which progress is currently being made: quantum computation and error correction…
Entanglement in many-body systems
Recent interest in aspects common to quantum information and condensed matter has prompted a flurry of activity at the border of these disciplines that were far distant until a few years ago.…
The role of relative entropy in quantum information theory
- V. Vedral
- 19 February 2001
Quantum mechanics and information theory are among the most important scientific discoveries of the last century. Although these two areas initially developed separately, it has emerged that they are…
Necessary and sufficient condition for nonzero quantum discord.
A necessary and sufficient condition for the existence of nonzero quantum discord for any dimensional bipartite states is obtained, and a geometrical way of quantifying quantum discord is proposed.
Unified view of quantum and classical correlations.
- K. Modi, T. Paterek, W. Son, V. Vedral, M. Williamson
- Mathematics, PhysicsPhysical review letters
- 29 November 2009
We discuss the problem of the separation of total correlations in a given quantum state into entanglement, dissonance, and classical correlations using the concept of relative entropy as a distance…