Entanglement distribution and quantum discord
arXiv:1610.05078 · doi:10.1007/978-3-319-53412-1_10
Abstract
Establishing entanglement between distant parties is one of the most important problems of quantum technology, since long-distance entanglement is an essential part of such fundamental tasks as quantum cryptography or quantum teleportation. In this lecture we review basic properties of entanglement and quantum discord, and discuss recent results on entanglement distribution and the role of quantum discord therein. We also review entanglement distribution with separable states, and discuss important problems which still remain open. One such open problem is a possible advantage of indirect entanglement distribution, when compared to direct distribution protocols.
7 pages, 2 figures, contribution to "Lectures on general quantum correlations and their applications", edited by Felipe Fanchini, Diogo Soares-Pinto, and Gerardo Adesso
References in corpus (15)
- Necessary and sufficient condition for non-zero quantum discord
- Measuring Quantum Coherence with Entanglement
- No-local-broadcasting theorem for quantum correlations
- Converting Coherence to Quantum Correlations
- Frozen Quantum Coherence
- Quantum discord for general two--qubit states: Analytical progress
- Linking Quantum Discord to Entanglement in a Measurement
- All non-classical correlations can be activated into distillable entanglement
- Quantum discord bounds the amount of distributed entanglement
- Conservation law for distributed entanglement of formation and quantum discord
- Quantum cost for sending entanglement
- Linking a distance measure of entanglement to its convex roof
- Experimentally Witnessing the Quantumness of Correlations
- Quantum Discord and its Role in Quantum Information Theory
- Using Separable Bell-Diagonal States to Distribute Entanglement
Cited by in corpus (5)
- Quantum discord and its allies: a review
- Quantum correlations in separable multi-mode states and in classically entangled light
- Experimental localisation of quantum entanglement through monitored classical mediator
- Preparing tunable Bell-diagonal states on a quantum computer
- Preserving quantum correlations and coherence with non-Markovianity