The dynamics of an open quantum system, consisting of three superconducting qubits interacting with independent reservoirs, is investigated to elucidate the effects of the environment on a unitary generation scheme of W states (Migliore R et al 2006 Phys. Rev. B 74 104503). To this end a microscopic master equation is constructed and its exact resolution predicts the generation of a Werner-like state instead of the W state. A comparison between our model and a more intuitive phenomenological model is also considered, in order to find the limits of the latter approach in the case of structured reservoirs.
|Data di pubblicazione:||2011|
|Titolo:||Dissipative effects on a scheme of generation of a W state in an array of coupled Josephson junctions|
|Citazione:||Migliore, R., Scala, M., Napoli, A., Yuasa, K., Nakazato, H., & Messina, A. (2011). Dissipative effects on a scheme of generation of a W state in an array of coupled Josephson junctions. JOURNAL OF PHYSICS. B, ATOMIC MOLECULAR AND OPTICAL PHYSICS, 44, 075503-1-075503-9.|
|Appare nelle tipologie:||1.01 Articolo in rivista|
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