6533b7d9fe1ef96bd126ceec
RESEARCH PRODUCT
Heat Capacity and Entanglement Measure in a simple two-qubit model
Anna NapoliBruno LeggioAntonino MessinaHiromichi Nakazatosubject
PhysicsQuantum discordQuantum PhysicsSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciFOS: Physical sciencesQuantum entanglementquantum phase transitions thermal entanglement heat capacitySquashed entanglementMeasure (mathematics)Atomic and Molecular Physics and OpticsSettore FIS/03 - Fisica Della MateriaQuantum mechanicsQubitQuantum metrologyW stateAmplitude damping channelQuantum Physics (quant-ph)Engineering (miscellaneous)description
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
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |