Nonlocal quantum memory effects in a correlated multimode field

Nonlocal quantum memory effects in a correlated multimode field

We review the model of two qubits coupled locally to an environment which consists of nonlocally correlated field modes [Phys. Rev.Lett. 108, 210402 (2012)]. We derive the correct expressions for the reduced dynamics of the two-qubit system and demonstrate that strong nonlocal memory effects are ind...

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Veröffentlicht in:arXiv.org 2013-10
Hauptverfasser: Wißmann, Steffen, Breuer, Heinz-Peter
Format: Artikel
Sprache:eng
Schlagworte:
Quantum phenomena
Qubits (quantum computing)
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Zusammenfassung:We review the model of two qubits coupled locally to an environment which consists of nonlocally correlated field modes [Phys. Rev.Lett. 108, 210402 (2012)]. We derive the correct expressions for the reduced dynamics of the two-qubit system and demonstrate that strong nonlocal memory effects are indeed present for suitable initial EPR-type Gaussian environmental states.
ISSN:2331-8422