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- W2894766327 abstract "We perform an exact-diagonalization study of quasihole excitations for the two-component Halperin $(221)$ state in the lowest Landau level and for several $nu=1/3$ bosonic fractional Chern insulators in topological flat bands with Chern number $|C|=2$. Properties including the quasihole size, charge, and braiding statistics are evaluated. For the Halperin $(221)$ model state, we observe isotropic quasiholes with a clear internal structure, and obtain the quasihole charge and statistics matching the theoretical values. Interestingly, we also extract the same quasihole size, charge, and braiding statistics for the continuum model states of $|C|=2$ fractional Chern insulators, although the latter possess a color-entangled nature that does not exist in ordinary two-component Halperin states. We also consider two real lattice models with a band having $|C|=2$. There, we find that a quasihole can exhibit much stronger oscillations of the density profile, while having the same charge and statistics as those in the continuum models." @default.
- W2894766327 created "2018-10-12" @default.
- W2894766327 creator A5008130108 @default.
- W2894766327 creator A5042430589 @default.
- W2894766327 creator A5068422593 @default.
- W2894766327 date "2019-01-23" @default.
- W2894766327 modified "2023-10-10" @default.
- W2894766327 title "Characterization of quasiholes in two-component fractional quantum Hall states and fractional Chern insulators in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mo>|</mml:mo><mml:mi>C</mml:mi><mml:mo>|</mml:mo></mml:mrow></mml:math> =2 flat bands" @default.
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- W2894766327 doi "https://doi.org/10.1103/physrevb.99.045136" @default.
- W2894766327 hasPublicationYear "2019" @default.
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