Thermodynamical analogues in quantum information theory

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1 Scopus citations

Abstract

The first step in quantum information theory is the identification of entanglement as a valuable resource. The next step is learning how to exploit this resource efficiently. We learn how to exploit entanglement efficiently by applying analogues of thermodynamical concepts. These concepts include reversibility, entropy, and the distinction between intensive and extensive quantities. We discuss some of these analogues and show how they lead to a measure of entanglement for pure states. We also ask whether these analogues are more than analogues, and note that, locally, entropy of entanglement is thermodynamical entropy.

Original languageEnglish
Pages (from-to)393-397
Number of pages5
JournalOptika i Spektroskopiya
Volume91
Issue number3
StatePublished - 1 Dec 2001
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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