Share This Author
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.…
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 measures and purification procedures
It is argued that the statistical basis of the measure of entanglement determines an upper bound to the number of singlets that can be obtained by any purification procedure.
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…
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…
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…
Introduction to Quantum Information Science
- V. Vedral
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.
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.
Gravitationally Induced Entanglement between Two Massive Particles is Sufficient Evidence of Quantum Effects in Gravity.
This work proves that any system mediating entanglement between two quantum systems must be quantum, and proposes an experiment to detect the entanglements generated between two masses via gravitational interaction, which is closer to realization than detecting gravitons or detecting quantum gravitational vacuum fluctuations.
Unified view of quantum and classical correlations.
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…