Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session S01: Fractional Quantum Hall Effect: Novel States and Excitations
11:15 AM–2:15 PM,
Thursday, March 7, 2019
BCEC
Room: 106
Sponsoring
Unit:
DCMP
Chair: Lucia Steinke, Texas A&M University
Abstract: S01.00001 : Zero modes, Bosonization and Topological Quantum Order: Composite Fermions in Second Quantization
11:15 AM–11:27 AM
Presenter:
Li Chen
(Florida State University)
Authors:
Li Chen
(Florida State University)
Sumanta Bandyopadhyay
(Washington University, St. Louis)
Kun Yang
(Florida State University)
Alexander Seidel
(Washington University, St. Louis)
These recursions generalize a similar recursion originally written down by Read for Laughlin states, in mixed first-second quantized notation. In contrast, our approach is purely second-quantized, giving rise to an algebraic, ``pure guiding center'' definition of CF states that de-emphasizes first quantized many-body wave functions. Key to the construction is a second-quantized representation of the flux attachment operator that maps any given fermion state to its CF counterpart.
An algebra of generators of edge excitations is identified. In particular, in those cases where a well-studied parent Hamiltonian exists, its properties can be entirely understood in the present framework, and the identification of edge state generators can be understood as an instance of ``microscopic bosonization''. The intimate connection of Read's original recursion with ``non-local order parameters'' generalizes to the present situation, and we are able to give explicit second quantized formulas for non-local order parameters associated with CF states.
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