English

Zero modes, Bosonization and Topological Quantum Order: The Laughlin State in Second Quantization

Strongly Correlated Electrons 2015-03-02 v2 Mesoscale and Nanoscale Physics Mathematical Physics math.MP

Abstract

We introduce a "second-quantized" representation of the ring of symmetric functions to further develop a purely second-quantized -- or "lattice" -- approach to the study of zero modes of frustration free Haldane-pseudo-potential-type Hamiltonians, which in particular stabilize Laughlin ground states. We present three applications of this formalism. We start demonstrating how to systematically construct all zero-modes of Laughlin-type parent Hamiltonians in a framework that is free of first-quantized polynomial wave functions, and show that they are in one-to-one correspondence with dominance patterns. The starting point here is the pseudo-potential Hamiltonian in "lattice form", stripped of all information about the analytic structure of Landau levels (dynamical momenta). Secondly, as a by-product, we make contact with the bosonization method, and obtain an alternative proof for the equivalence between bosonic and fermionic Fock spaces. Finally, we explicitly derive the second-quantized version of Read's non-local (string) order parameter for the Laughlin state, extending an earlier description by Stone. Commutation relations between the local quasi-hole operator and the local electron operator are generalized to various geometries.

Keywords

Cite

@article{arxiv.1409.3577,
  title  = {Zero modes, Bosonization and Topological Quantum Order: The Laughlin State in Second Quantization},
  author = {Tahereh Mazaheri and Gerardo Ortiz and Zohar Nussinov and Alexander Seidel},
  journal= {arXiv preprint arXiv:1409.3577},
  year   = {2015}
}

Comments

version published in PRB, editor's suggestion

R2 v1 2026-06-22T05:54:52.948Z