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arXiv 1306.6869cond-mat.mes-hall
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复合费米子的相干非线性量子模型

Coherent Nonlinear Quantum Model for Composite Fermions

Gilbert Reinisch, Vidar Gudmundsson, Andrei Manolescu

摘要:

复合费米子最初由Read [1]和Jain [2]提出,是两个无限薄的局域磁通量子作为非局域涡旋与嵌入强正交磁场中的二维电子的唯象附着。在这封信中,它被描述为一个高度非线性和相干的平均场量子过程的孤子型使用的二维稳态薛定谔-泊松微分模型,只有两个库仑相互作用的电子。在最低朗道能级的填充因子$ν={1}{3}$处,它与精确的双电子反对称薛定谔波函数和Laughlin对分数量子霍尔效应的Jastrow型猜测一致,从而为后者提供了基于第一性原理的初步物理证明.

英文摘要:

Originally proposed by Read [1] and Jain [2], the so-called "composite-fermion" is a phenomenological attachment of two infinitely thin local flux quanta seen as nonlocal vortices to two-dimensional (2D) electrons embedded in a strong orthogonal magnetic field. In this letter, it is described as a highly-nonlinear and coherent mean-field quantum process of the soliton type by use of a 2D stationary Schroedinger-Poisson differential model with only two Coulomb-interacting electrons. At filling factor $ν={1}{3}$ of the lowest Landau level, it agrees with both the exact two-electron antisymmetric Schroedinger wave function and Laughlin's Jastrow-type guess for the fractional quantum Hall effect, hence providing this later with a tentative physical justification based on first principles.

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