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Quantum fluctuations at antiferromagnetic to valence-bond-solid transition

Published on:

25 January 2024

Primary Category:

Strongly Correlated Electrons

Paper Authors:

Jonathan D'Emidio,

Anders W. Sandvik

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Key Details

Studies phase transition in two-dimensional quantum magnet

Finds evidence for emergent SO(5) symmetry of critical fluctuations

Uses numerical quantum Monte Carlo simulations to compute entanglement

Shows importance of properly accommodating valence-bond fluctuations

Supports existence of deconfined quantum critical point

AI generated summary

Quantum fluctuations at antiferromagnetic to valence-bond-solid transition

This paper studies the quantum phase transition between antiferromagnetic and valence-bond-solid ground states in a model two-dimensional magnet. Using advanced numerical techniques, the authors find evidence for critical fluctuations consistent with emergent SO(5) symmetry, indicating proximity to a novel 'deconfined' quantum critical point beyond the standard Landau paradigm.

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