Non-hermitian dynamics of a dissipative squid in a MQC experiment

被引：1

作者：

Chiatti, L

Mignani, R

机构：

[1] UNIV ROME 3,PHYS DEPT E AMALDI,I-00146 ROME,ITALY

[2] UNIV ROMA LA SAPIENZA,DEPT PHYS,I-00185 ROME,ITALY

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 1997年 / 11卷 / 08期

关键词：

D O I：

10.1142/S021797929700054X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe the dynamics of a rf-SQUID, in presence of dissipation, by exploiting generalized non-Hermitian Hamiltonians. We discuss, by such an approach, the time evolution of the density matrix for an ohmic rf-SQUID in a MQC experiment. Our formalism allows us to recover the results by Caldeira and Leggett on the decay rate of the oscillations of the tunneling probability.

引用

页码：1051 / 1066

页数：16

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[21] CROSSOVER FROM THERMAL HOPPING TO QUANTUM TUNNELING [J].