Year: 2026
Type: article
Abstract: Quantum many-body scars (QMBS) serve as important examples of ergodicity-breaking phenomena in quantum many-body systems. Despite recent extensive studies, exact QMBS are rare in dimensions higher than one. In this paper, we study a two-dimensional quantum Z 2 gauge model that is dual to a two-dimensional spin- 1 / 2 XY model defined on bipartite graphs. We identify the exact eigenstates of the XY model with a tower structure as exact QMBS. Exploiting the duality transformation, we show that the exact QMBS of the XY model (and XXZ model) after the transformation are the exact QMBS of the dual Z 2 gauge model. This construction is versatile and has potential applications for finding new QMBS in other higher-dimensional models.
Source: Quantum
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $215
Awards: Mathematical study of quantum many-body dynamics, The Grand Unified Theory for Integrable Models from Superstring Theory, G126678723, G3826262035, G3837673098, G4877647967, G5473779960, A comprehensive study on the mathematical aspects of metallic ferromagnetism, Quantum Simulations of Quantum Parton Showers, G7361322335, G7904985311, G829024074, G8768447908
OpenAlex ID: W4416047626
FWCI:
Cites:
Cited by:
Related to: