Entanglement dynamics under decoherence: from qubits to qudits

2005/08/16 by André R. R. Carvalho, Florian Mintert, Carvalho, André R. R. +5
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph

paper · pdf · doi:10.48550/arxiv.quant-ph/0508114

8 pages, 2 figures

arxiv created 2005/08/16 · arxiv updated 2009/12/01

Abstract

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.

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