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 originale | English |
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pagine (da-a) | 362-371 |
Numero di pagine | 10 |
Rivista | Journal of Russian Laser Research |
Volume | 32 |
Stato di pubblicazione | Published - 2011 |
All Science Journal Classification (ASJC) codes
- ???subjectarea.asjc.3100.3107???
- ???subjectarea.asjc.2200.2201???