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Journal Article

Non-Abelian quasiholes in lattice Moore-Read states and parent Hamiltonians

MPS-Authors
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Manna,  Sourav
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;

Fulltext (public)

1807.11222.pdf
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Citation

Manna, S., Wildeboer, J., Sierra, G., & Nielsen, A. E. B. (2018). Non-Abelian quasiholes in lattice Moore-Read states and parent Hamiltonians. Physical Review B, 98(16): 165147. doi:10.1103/PhysRevB.98.165147.


Cite as: http://hdl.handle.net/21.11116/0000-0002-DEB7-6
Abstract
This work concerns Ising quasiholes in Moore-Read type lattice wave functions derived from conformal field theory. We commence with constructing Moore-Read type lattice states and then add quasiholes to them. By use of Metropolis Monte Carlo simulations, we analyze the features of the quasiholes, such as their size, shape, charge, and braiding properties. The braiding properties, which turn out to be the same as in the continuum Moore-Read state, demonstrate the topological attributes of the Moore-Read lattice states in a direct way. We also derive parent Hamiltonians for which the states with quasiholes included are ground states. One advantage of these Hamiltonians lies therein that we can now braid the quasiholes just by changing the coupling strengths in the Hamiltonian since the Hamiltonian is a function of the positions of the quasiholes. The methodology exploited in this article can also be used to construct other kinds of lattice fractional quantum Hall models containing quasiholes, for example, investigation of Fibonacci quasiholes in lattice Read-Rezayi states.