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Proceedings 15th Annual IEEE Conference on Computational Complexity (2000)
Florence, Italy
July 4, 2000 to July 7, 2000
ISSN: 1093-0159
ISBN: 0-7695-0674-7
pp: 263
In analogy of classical Kolmogorov complexity we develop a theory of the algorithmic information in bits contained in any one of continuously many pure quantum states: quantum Kolmogorov complexity. Classical Kolmogorov complexity coincides with the new quantum Kolmogorov complexity restricted to the classical domain. Quantum Kolmogorov complexity is upper bounded and can be effectively approximated from above. With high probability, a quantum object is incompressible. There are two alternative approaches possible: to define the complexity as the length of the shortest qubit program that effectively describes the object, and to use classical descriptions with computable real parameters.

P. Vitanyi, "Three Approaches to the Quantitative Definition of Information in an Individual Pure Quantum State," Proceedings 15th Annual IEEE Conference on Computational Complexity(CCC), Florence, Italy, 2000, pp. 263.
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