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

Antonino Messina; Bruno Leggio; Anna Napoli; null Nakazato

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

Antonino Messina, Bruno Leggio, Anna Napoli, Nakazato

Risultato della ricerca: Article › peer review

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
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

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)

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title = "HEAT CAPACITY AND ENTANGLEMENT MEASURE IN A SIMPLE TWO-QUBIT MODEL",

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{\textquoteright}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.",

keywords = "heat capacity, quantum phase transitions, thermal entanglement, heat capacity, quantum phase transitions, thermal entanglement",

author = "Antonino Messina and Bruno Leggio and Anna Napoli and Nakazato",

year = "2011",

language = "English",

volume = "32",

pages = "362--371",

journal = "Journal of Russian Laser Research",

issn = "1071-2836",

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T1 - HEAT CAPACITY AND ENTANGLEMENT MEASURE IN A SIMPLE TWO-QUBIT MODEL

AU - Messina, Antonino

AU - Leggio, Bruno

AU - Napoli, Anna

AU - Nakazato, null

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

KW - heat capacity

KW - quantum phase transitions

KW - thermal entanglement

KW - heat capacity

KW - quantum phase transitions

KW - thermal entanglement

UR - http://hdl.handle.net/10447/60067

M3 - Article

VL - 32

SP - 362

EP - 371

JO - Journal of Russian Laser Research

JF - Journal of Russian Laser Research

SN - 1071-2836

ER -