Induced time-reversal symmetry breaking observed in microwave billiards

被引：39

作者：

Dietz, B. ^{[1
]}

Friedrich, T.

Harney, H. L.

Miski-Oglu, M.

Richter, A.

Schaefer, F.

Weidenmueller, H. A.

机构：

[1] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[2] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.98.074103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using reciprocity, we investigate the breaking of time-reversal (T) symmetry due to a ferrite embedded in a flat microwave billiard. Transmission spectra of isolated single resonances are not sensitive to T violation, whereas those of pairs of nearly degenerate resonances do depend on the direction of time. For their theoretical description a scattering matrix model from nuclear physics is used. The T-violating matrix elements of the effective Hamiltonian for the microwave billiard with the embedded ferrite are determined experimentally as functions of the magnetization of the ferrite.

引用

页数：4

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