论文标题

分数量子厅效应中的域纹理

Domain Textures in the Fractional Quantum Hall Effect

论文作者

Liu, Ziyu, Wurstbauer, Ursula, Du, Lingjie, West, Ken W., Pfeiffer, Loren N., Manfra, Michael J., Pinczuk, Aron

论文摘要

域纹理对大部分分数量子霍尔效应(FQHE)系统中低洼中性激发的影响是通过共振的无弹性光散射探测的。我们证明,量子流体的大域支持具有定义明确的波矢量(动量)分散的长波长中性集体激发,这些分散可以由统一相的理论解释。在填充因子V = 1/3处的大型FQHE流体的大域(例如长波长磁极)等大型域中的分散性低洼中性集体模式访问FQHE中的强电子相关物理,从而获得了大量的实验访问。

Impacts of domain textures on low-lying neutral excitations in the bulk of fractional quantum Hall effect (FQHE) systems are probed by resonant inelastic light scattering. We demonstrate that large domains of quantum fluids support long-wavelength neutral collective excitations with well-defined wave vector (momentum) dispersion that could be interpreted by theories for uniform phases. Access to dispersive low-lying neutral collective modes in large domains of FQHE fluids such as long wavelength magnetorotons at filling factor v=1/3 offer significant experimental access to strong electron correlation physics in the FQHE.

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