Howard Barnum, Carlton M. Caves, Christopher A. Fuchs, Richard Jozsa, Benjamin W. Schumacher
Published 2000-08-04Version 1
We consider the problem of optimal asymptotically faithful compression for ensembles of mixed quantum states. Although the optimal rate is unknown, we prove upper and lower bounds and describe a series of illustrative examples of compression of mixed states. We also discuss a classical analogue of the problem.
Comments: 23 pages, LaTeX
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