2002/02/21 by Wojciech Hubert Zurek, Zurek, Wojciech Hubert
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0202123
arxiv created 2002/02/21 · arxiv updated 2009/12/01
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 in extracting work from collections of correlated quantum systems.