弱重叠共振区中时间折射不变性的诱导破坏
Induced Violation of Time-Reversal Invariance in the Regime of Weakly Overlapping Resonances
摘要：
我们测量了一个平面微波腔（一个“混沌台球”）的复散射振幅。时间反演T-不变性被放置在腔内的磁化铁氧体部分打破。我们将随机矩阵方法推广到散射中的T-破坏，拟合了散射振幅的一些性质，并成功地预测了其他性质。我们的工作构成了迄今为止可用的随机矩阵理论框架内的T-破坏的理论方法的最精确的测试。
英文摘要：
We measure the complex scattering amplitudes of a flat microwave cavity (a "chaotic billiard"). Time-reversal T-invariance is partially broken by a magnetized ferrite placed within the cavity. We extend the random-matrix approach to T-violation in scattering, fit some of the properties of the scattering amplitudes, and then successfully predict others. Our work constitutes the most precise test of the theoretical approach to T-violation within the framework of random-matrix theory so far available.
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