Entanglement dynamics under decoherence: from qubits to qudits

被引：44

作者：

Carvalho, A. R. R.

Mintert, F.

Palzer, S.

Buchleitner, A.

机构：

[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

来源：

EUROPEAN PHYSICAL JOURNAL D | 2007年 / 41卷 / 02期

关键词：

03.65.Yz Decoherence; open systems; quantum statistical methods; 03.67.-a Quantum information; 03.67.Mn Entanglement production; characterization; and manipulation;

D O I：

10.1140/epjd/e2006-00246-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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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页码：425 / 432

页数：8

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