论文标题
复合费米的几何共振的不对称性
Asymmetry of the Geometrical Resonances of Composite Fermions
论文作者
论文摘要
我们提出了一项实验，以测试复合费米子的均匀贝尔曲线图。我们表明，在定期调制的复合费米子系统中观察到的几何共振的不对称性可以用均匀的莓曲面图片来解释。此外，我们表明调节系统的另一种方法，即调节外部磁场，将诱导与通常的周期性光栅调制相反的不对称性，从而有效地调节了Chern-Simons场。该实验可以作为对均匀的贝尔曲面图片的关键测试，并探测读取提出的复合费米子的偶极结构。
We propose an experiment to test the uniform-Berry-curvature picture of composite fermions. We show that the asymmetry of geometrical resonances observed in a periodically modulated composite fermion system can be explained with the uniform-Berry-curvature picture. Moreover, we show that an alternative way of modulating the system, i.e., modulating the external magnetic field, will induce an asymmetry opposite to that of the usual periodic grating modulation which effectively modulates the Chern-Simons field. The experiment can serve as a critical test of the uniform-Berry-curvature picture, and probe the dipole structure of composite fermions proposed by Read.
