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RESEARCH PRODUCT
Entanglement trapping in structured environments
Sabrina ManiscalcoGiuseppe CompagnoRosario Lo FrancoBruno Bellomosubject
Settore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciQuantum decoherencePopulationFOS: Physical sciences42.50.-p71.55.JvQuantum entanglement01 natural sciencesSudden death010305 fluids & plasmasQuantum mechanics0103 physical sciencesSpontaneous emission010306 general physicseducationQuantumPhysicsQuantum opticsQuantum Physicseducation.field_of_studyQuantum PhysicsAtomic and Molecular Physics and Optics03.67.MnQubit03.65.YzQuantum Physics (quant-ph)description
The entanglement dynamics of two independent qubits each embedded in a structured environment under conditions of inhibition of spontaneous emission is analyzed, showing entanglement trapping. We demonstrate that entanglement trapping can be used efficiently to prevent entanglement sudden death. For the case of realistic photonic band-gap materials, we show that high values of entanglement trapping can be achieved. This result is of both fundamental and applicative interest since it provides a physical situation where the entanglement can be preserved and manipulated, e.g. by Stark-shifting the qubit transition frequency outside and inside the gap.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-05-20 | Physical Review A |