Optics and Spectroscopy

, Volume 91, Issue 3, pp 363–367 | Cite as

Thermodynamical analogues in quantum information theory

  • D. Rohrlich
Quantum Information and Quantum Measurements


The first step in quantum information theory is the identification of entanglement as a valuable resource. The next step is learning how to efficiently exploit this resource. We learn how to efficiently exploit entanglement 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.


Entropy Entangle State Pure State Heat Engine Quantum Information Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© MAIK "Nauka/Interperiodica" 2001

Authors and Affiliations

  • D. Rohrlich
    • 1
  1. 1.School of Physics and AstronomyTel Aviv UniversityRamat Aviv, Tel AvivIsrael

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