We investigates the effective interactions between anyons emerging from either model or realistic bare electron-electron (e-e) interactions in Laughlin and Moore-Read fractional quantum Hall (FQH) fluids. Instead of being purely repulsive or attractive, such anyons display rich dynamics with interesting experimental consequences. Two Laughlin anyons prefer to form bound states with short-range e-e interactions, leading to 2e/3 bunched quasiholes at low temperatures instead of the e/3 quasiholes. In non-Abelian Moore-Read FQH phases, two e/4 quasiholes can fuse into topologically distinct ''1'' or '''' anyons that are no longer degenerate with realistic two-body e-e interactions. This suggests the possibility to energetically separate and manipulate the two types of anyons by tuning the bare electron-electron interactions. We propose that the recently developed high-resolution STM measurements can be used to probe effective anyon interactions when anyons are clustered together after the tunneling of electrons. The local density of states from various bound states of anyon clusters are simulated for both Abelian and non-Abelian systems with (screened) Coulomb interactions.
Xu et al. (Mon,) studied this question.
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