Optimal Coherent Control to Counteract Dissipation

被引：37

作者：

Sauer, Simeon ^{[1
]}

Gneiting, Clemens ^{[1
]}

Buchleitner, Andreas ^{[1
]}

机构：

[1] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 03期

关键词：

QUANTUM DYNAMICS; STATE; ENTANGLEMENT; DRIVEN; SPINS;

D O I：

10.1103/PhysRevLett.111.030405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study to what extent the detrimental impact of dissipation on quantum properties can be compensated by suitable coherent dynamics. To this end, we develop a general method to determine the control Hamiltonian that optimally counteracts a given dissipation mechanism, in order to sustain the desired property, and apply it to two exemplary target properties: the coherence of a decaying two-level system and the entanglement of two qubits in the presence of local dissipation.

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页数：5

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