The problem of detecting quantum signatures in the correlations formed in dynamical evolution of quantum bipartite systems receives a lot of attention in current literature. Generally speaking, the occurrence of correlations between two observables of a system does not necessarily reflect nonclassical behaviour. In this paper, the exact dynamics of a pair of uncoupled spins 1/2 interacting with a common spin 1/2 bath is investigated. Starting from a separable initial condition, the ability of the system to develop purely quantum correlations is brought to light. Physical interpretation of the concurrence function as well as a suggestion on how to measure it are given. © Springer 2006

F PALUMBO, NAPOLI A, A MESSINA (2006). Quantum correlations in generalized spin star system. OPEN SYSTEMS & INFORMATION DYNAMICS, 13, 309-314 [10.1007/s11080-006-9011-5].

Quantum correlations in generalized spin star system

MESSINA, Antonino
2006-01-01

Abstract

The problem of detecting quantum signatures in the correlations formed in dynamical evolution of quantum bipartite systems receives a lot of attention in current literature. Generally speaking, the occurrence of correlations between two observables of a system does not necessarily reflect nonclassical behaviour. In this paper, the exact dynamics of a pair of uncoupled spins 1/2 interacting with a common spin 1/2 bath is investigated. Starting from a separable initial condition, the ability of the system to develop purely quantum correlations is brought to light. Physical interpretation of the concurrence function as well as a suggestion on how to measure it are given. © Springer 2006
2006
F PALUMBO, NAPOLI A, A MESSINA (2006). Quantum correlations in generalized spin star system. OPEN SYSTEMS & INFORMATION DYNAMICS, 13, 309-314 [10.1007/s11080-006-9011-5].
File in questo prodotto:
File Dimensione Formato  
Palumbo2006_Article_QuantumCorrelationsInAGenerali.pdf

Solo gestori archvio

Dimensione 236.14 kB
Formato Adobe PDF
236.14 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/33423
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 8
social impact