We point out a symmetry exhibited by pairs of entangled states and discuss its possible applications in quantum information. More specifically, we consider quadripartite systems prepared in bipartite product states of the form = 12 34 and let the uncorrelated subsystems 14 and 23 interact by a given unitary U14 U23 describing two bilinear interactions: we show that entanglement between the noninteracting subsystems 12 and 34 may lead to invariance of under the action of the unitary, i.e., make an eigenstate of U14 U23. We call this phenomenon entanglement induced transparency and investigate its occurrence both in continuous variable and qubit systems. We also discuss its possible applications to bath engineering, double swapping and remote inversion.
Entanglement-induced invariance in bilinear interactions / S. Olivares, M. Paris. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 80:3(2009), pp. 032329.032329.1-032329.032329.7. [10.1103/PhysRevA.80.032329]
Entanglement-induced invariance in bilinear interactions
S. OlivaresPrimo
;M. ParisUltimo
2009
Abstract
We point out a symmetry exhibited by pairs of entangled states and discuss its possible applications in quantum information. More specifically, we consider quadripartite systems prepared in bipartite product states of the form = 12 34 and let the uncorrelated subsystems 14 and 23 interact by a given unitary U14 U23 describing two bilinear interactions: we show that entanglement between the noninteracting subsystems 12 and 34 may lead to invariance of under the action of the unitary, i.e., make an eigenstate of U14 U23. We call this phenomenon entanglement induced transparency and investigate its occurrence both in continuous variable and qubit systems. We also discuss its possible applications to bath engineering, double swapping and remote inversion.File | Dimensione | Formato | |
---|---|---|---|
EntIT.pdf
accesso aperto
Tipologia:
Publisher's version/PDF
Dimensione
178.02 kB
Formato
Adobe PDF
|
178.02 kB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.