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Fractional quantum Hall effects without rotational symmetry

Date: 2018-10-19
Time: 11:51
Venue: M253


Haldane pseudopotentials play a key role in understanding the physics of the fractional quantum Hall states. By using a more general class of pseudopotentials that form a complete basis in the cases where rotational symmetry is explicitly broken, e.g., due to tilted magnetic field or anisotropic dipolar interaction in cold atoms in a rotated trap. Similar to the standard isotropic pseudopotentials, the generalized pseudopotentials are also parametrized by a unimodular metric, which groups the effective interactions into equivalence classes, and is particularly useful in determining optimal model Hamiltonians of the anisotropic FQH fluids.


胡自翔,重庆大学物理系教授,2003年本科毕业于西安交通大学应用物理系,2008年获得浙江大学物理学博士学位,期间在美国佛罗里达国家强磁场实验室联合培养一年。2009-2010年韩国亚太理论物理研究中心博士后,2010-2012年美国普林斯顿大学电子工程系博士后。长期从事分数量子霍尔效应等相关理论研究,在Phys. Rev. Lett, Phys. Rev. B等期刊发表论文30余篇。

邀请人:曹则贤 研究员