Nature of quasiparticle excitations in the fractional quantum Hall effect

Article

关键词: TRIAL WAVE-FUNCTIONS;    STATISTICS;    CHARGE;    DISK;   

DOI  :  10.1103/PhysRevB.68.165346

来源: SCIE

【 摘 要 】

We investigate the 1/3 fractional quantum Hall state with one and two quasiparticle excitations. It is shown that the quasiparticle excitations are best described as excited composite fermions occupying higher composite-fermion quasi-Landau levels. In particular, the composite-fermion wave function for a single quasiparticle has 15% lower energy than the trial wave function suggested by Laughlin, and for two quasiparticles, the composite fermion theory also gives new qualitative structures.

【 授权许可】

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