Heat Capacity and Entanglement Measure in a simple two-qubit model
Quantum Physics
2011-04-07 v1
Abstract
A simple two-qubit model showing Quantum Phase Transitions as a consequence of ground state level crossings is studied in detail. Using the Concurrence of the system as an entanglement measure and heat capacity as a marker of thermodynamical properties, an analytical expression giving the latter in terms of the former is obtained. 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
Keywords
Cite
@article{arxiv.1104.1116,
title = {Heat Capacity and Entanglement Measure in a simple two-qubit model},
author = {B. Leggio and A. Napoli and H. Nakazato and A. Messina},
journal= {arXiv preprint arXiv:1104.1116},
year = {2011}
}
Comments
7 pages, 3 figures