English

Microscopic geometric theory for gapped excitations in fractional topological fluids

Strongly Correlated Electrons 2026-03-17 v1

Abstract

We propose a geometric description of all gapped excitations in fractional quantum Hall phases that reveals several fundamental understandings with experimental consequences. These include a duality between the Hilbert space of multiple gapped ``graviton-like" spin 2 excitations at ν=1/3\nu=1/3 Laughlin phase, and that of non-Abelian quasiholes of an irrational Haffnian conformal field theory. This leads us to construct microscopic wave functions for multiple higher-spin gapped neutral modes in the Laughlin phase. Carrying spin s2s \ge 2, they emerge from higher-order geometric deformations of the topological ground state, and live within the Gaffnian conformal Hilbert space asymptotically. We show that the full many-body Hilbert space of an FQH phase can be generated from superpositions of such geometric deformations, supporting a concrete geometric interpretation of all gapped excitations. We analyse the scattering between these higher spin modes and conjecture that they can have a long lifetime, and propose methods for their experimental detection.

Keywords

Cite

@article{arxiv.2603.13489,
  title  = {Microscopic geometric theory for gapped excitations in fractional topological fluids},
  author = {Yuzhu Wang and Bo Yang},
  journal= {arXiv preprint arXiv:2603.13489},
  year   = {2026}
}

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