6533b85efe1ef96bd12bfc69
RESEARCH PRODUCT
Entanglement dynamics of two independent cavity-embedded quantum dots
Alessandro RidolfoRosario Lo FrancoBruno BellomoSalvatore SavastaGiuseppe Compagnosubject
DephasingFOS: Physical sciencesQuantum entanglementOpen system (systems theory)Settore FIS/03 - Fisica Della MateriaOpen quantum systemsAtomic and Molecular PhysicsQuantum mechanicsMesoscale and Nanoscale Physics (cond-mat.mes-hall)Spontaneous emissionMathematical PhysicsPhysicsQuantum PhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsTime evolutionCondensed Matter PhysicsAtomic and Molecular Physics and Optics; Mathematical Physics; Condensed Matter PhysicsAtomic and Molecular Physics and OpticsMultipartite68.65.Hb Quantum dots (patterned in quantum wells)Quantum dotQubitPhysics::Accelerator Physicsand OpticsQuantum Physics (quant-ph)68.65.Hb Quantum dots (patterned in quantum wells); Open quantum systemsdescription
We investigate the dynamical behavior of entanglement in a system made by two solid-state emitters, as two quantum dots, embedded in two separated micro-cavities. In these solid-state systems, in addition to the coupling with the cavity mode, the emitter is coupled to a continuum of leaky modes providing additional losses and it is also subject to a phonon-induced pure dephasing mechanism. We model this physical configuration as a multipartite system composed by two independent parts each containing a qubit embedded in a single-mode cavity, exposed to cavity losses, spontaneous emission and pure dephasing. We study the time evolution of entanglement of this multipartite open system finally applying this theoretical framework to the case of currently available solid-state quantum dots in micro-cavities.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-11-22 |