Entanglement dynamics under decoherence : from qubits to qudits

We investigate the time evolution of entanglement for bipartite systems of arbitrary dimensions under the influence of decoherence. For qubits, we determine the precise entanglement decay rates under different system-environment couplings, including finite temperature effects. For qudits, we show ho...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2007-02, Vol.41 (2), p.425-432
Main Authors: CARVALHO, A. R. R, MINTERT, F, PALZER, S, BUCHLEITNER, A
Format: Article
Language:English
Subjects:
Classical and quantum physics: mechanics and fields
Couplings
Decay rate
Entanglement
Exact sciences and technology
Exact solutions
Foundations, theory of measurement, miscellaneous theories (including aharonov-bohm effect, bell inequalities, berry's phase)
Physics
Quantum information
Quantum mechanics
Temperature effects
Upper bounds
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Summary:We investigate the time evolution of entanglement for bipartite systems of arbitrary dimensions under the influence of decoherence. For qubits, we determine the precise entanglement decay rates under different system-environment couplings, including finite temperature effects. For qudits, we show how to obtain upper bounds for the decay rates and also present exact solutions for various classes of states.
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2006-00246-4