HEAT CAPACITY AND ENTANGLEMENT MEASURE IN A SIMPLE TWO-QUBIT MODEL

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2 Citazioni (Scopus)

Abstract

A simple two-qubit model showing quantum phase transitions as a consequence of ground-state-level crossings is studied in detail. Using the system’s concurrence as an entanglement measure and heat capacity as a marker of thermodynamical properties, we obtain an analytical expression giving thelatter in terms of the former. A protocol allowing an experimental measure of entanglement is then presented and compared with a related proposal recently reported by Wie´sniak, Vedral, and Brukner.
Lingua originaleEnglish
pagine (da-a)362-371
Numero di pagine10
RivistaJournal of Russian Laser Research
Volume32
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)

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