Quantum discord and Maxwell's demons

By Wojciech H. Zurek. 2002

183 citations recorded by the source corpus.

Quantum discord was proposed as an information-theoretic measure of the ``quantumness'' of correlations. I show that discord determines the difference between the efficiency of quantum and classical Maxwell's demons---that is, entities that can or cannot measure nonlocal observables or carry out conditional quantum operations---in extracting work from collections of correlated quantum systems.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/7af5461bdef609fe123da13ed28f001e7c950779

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

1. Kavan Modi
2. Tomasz Paterek
3. H. Cable
4. Aharon Brodutch
5. Yu-Ran Zhang
6. Yi Peng
7. Jieci Wang
8. Ming‐Liang Hu

In Atomic and Molecular Physics, and Optics

1. Kavan Modi
2. Tomasz Paterek
3. H. Cable
4. Aharon Brodutch
5. Heng Fan
6. Ming‐Liang Hu
7. Yu-Ran Zhang
8. Yi Peng

Citations in the corpus

• The classical-quantum boundary for correlations: Discord and related measures (2011, methodology): “The discords for a measurement on A are D(B|A) = 0.05, Dth(B|A) = 0.20, D(B|{ΠEiga }) = 0.21, (49) and the discords for a measurement on B are zero.”
• Quantum coherence and geometric quantum discord (2017, background): “Furthermore, ∆→(ρAB) also equivalents to the thermal QD D̃A(ρAB) introduced by Zurek (2003).”