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Journal Article

Few-particle dynamics of fractional quantum Hall lattice models

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Haque,  Masudul
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Nielsen,  Anne E. B.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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1912.09894.pdf
(Preprint), 707KB

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Citation

Nandy, D. K., Haque, M., & Nielsen, A. E. B. (2020). Few-particle dynamics of fractional quantum Hall lattice models. Physical Review B, 101(20): 205305. doi:10.1103/PhysRevB.101.205305.


Cite as: https://hdl.handle.net/21.11116/0000-0006-ABDF-F
Abstract
Considering lattice Hamiltonians designed using conformal field theory to have fractional quantum Hall states as ground states, we study the dynamics of one or two particles on such lattices. Examining the eigenspectrum and dynamics of the single-particle sector, we demonstrate that these Hamiltonians cannot be regarded as describing interacting particles placed on a Chern band, so that the physics is fundamentally different from fractional Chern insulators. The single-particle spectrum is shown to consist of eigenstates localized in shells which have a larger radius for larger eigenenergies. This leads to chiral dynamics along reasonably well-defined orbits, in both the single-particle and the two-particle sectors.