Anyon braiding in semianalytical fractional quantum Hall lattice models

被引:24
|
作者
Nielsen, Anne E. B. [1 ]
机构
[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源
PHYSICAL REVIEW B | 2015年 / 91卷 / 04期
关键词
STATES; ENTANGLEMENT; STATISTICS; HIERARCHY; ENTROPY; FLUID;
D O I
10.1103/PhysRevB.91.041106
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
It has been demonstrated numerically, mainly by considering ground state properties, that fractional quantum Hall physics can appear in lattice systems, but it is very difficult to study the anyons directly. Here, I propose to solve this problem by using conformal field theory to build semianalytical fractional quantum Hall lattice models having anyons in their ground states, and I carry out the construction explicitly for the family of bosonic and fermionic Laughlin states. This enables me to show directly that the braiding properties of the anyons are those expected from an analytical continuation of the wave functions and to compute properties such as internal structure, size, and charge of the anyons with simple Monte Carlo simulations. The models can also be used to study how the anyons behave when they approach or even pass through the edge of the sample. Finally, I compute the effective magnetic field seen by the anyons, which varies periodically due to the presence of the lattice.
引用
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页数:5
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