Absence of fractal quantum criticality in the quantum Newman-Moore model

Wiedmann R, Lenke L, Mühlhauser M, Schmidt KP (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Book Volume: 6

Article Number: 013191

Issue: 1

DOI: 10.1103/PhysRevResearch.6.013191

Abstract

The quantum phase transition between the low-field fracton phase with type-II fracton excitations and the high-field polarized phase is investigated in the two-dimensional self-dual quantum Newman-Moore model. We apply perturbative and numerical linked-cluster expansions to calculate the ground-state energy per site in the thermodynamic limit, revealing a level crossing at the self-dual point. In addition, high-order series expansions of the relevant low-energy gaps are determined using perturbative continuous unitary transformations indicating no gap closing. Our results therefore predict a first-order phase transition between the low-field fracton and the high-field polarized phase at the self-dual point.

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APA:

Wiedmann, R., Lenke, L., Mühlhauser, M., & Schmidt, K.P. (2024). Absence of fractal quantum criticality in the quantum Newman-Moore model. Physical Review Research, 6. https://doi.org/10.1103/PhysRevResearch.6.013191

MLA:

Wiedmann, Raymond, et al. "Absence of fractal quantum criticality in the quantum Newman-Moore model." Physical Review Research 6 (2024).

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