A spin-star system consisting of three peripheral two-state systems and a central one is considered, with the peripheral spins assumed to interact with each other, as well as with the central one. It is shown that such two couplings, each one being a thermal entanglement source, can significantly compete in the formation of quantum correlations in the thermal state to the point that they can destroy any thermal entanglement of the peripheral spins.
Militello, B., Napoli, A. (2018). Competition of direct and indirect sources of thermal entanglement in a spin-star network. INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 16(1), 1850007-1-1850007-10 [10.1142/S0219749918500077].
Competition of direct and indirect sources of thermal entanglement in a spin-star network
Militello, Benedetto
;Napoli, Anna
2018-01-01
Abstract
A spin-star system consisting of three peripheral two-state systems and a central one is considered, with the peripheral spins assumed to interact with each other, as well as with the central one. It is shown that such two couplings, each one being a thermal entanglement source, can significantly compete in the formation of quantum correlations in the thermal state to the point that they can destroy any thermal entanglement of the peripheral spins.
| File | Dimensione | Formato | |
|---|---|---|---|
|
Thermal - lanl.pdf
Solo gestori archvio
Tipologia:
Post-print
Dimensione
2.02 MB
Formato
Adobe PDF
|
2.02 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
|
Militello-2018-Competition-of-direct-and-indirect-.pdf
Solo gestori archvio
Tipologia:
Versione Editoriale
Dimensione
2.05 MB
Formato
Adobe PDF
|
2.05 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
