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Quantum Simulation

Experimental benchmark of the quantum-classical crossover in a spin ladder

arXiv
Authors: Hironori Yamaguchi, Itsuki Shimamura, Akira Matsuo, Koichi Kindo, Koji Araki, Yoshiki Iwasaki, Masayuki Hagiwara

Year

2025

Paper ID

36592

Status

Preprint

Abstract Read

~2 min

Abstract Words

86

Citations

N/A

Abstract

We report a spin-(1/2, 5/2) three-leg ladder realized in a radical-Mn polymer, exhibiting an antiferromagnetic transition and magnetization curves accurately described by classical mean-field theory. Although the underlying spin model intrinsically supports strong quantum fluctuations, as confirmed by quantum Monte Carlo simulations, the real system shows an anomalously complete suppression of quantum behavior. These findings provide a key experimental benchmark for the quantum-classical crossover and suggest that lattice topology can play a crucial role in tuning the balance between quantum and classical physics in strongly correlated systems.

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  • We report a spin-(1/2, 5/2) three-leg ladder realized in a radical-Mn polymer, exhibiting an antiferromagnetic transition and magnetization curves accurately described by...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2512.12234 [2] arXiv https://arxiv.org/abs/2512.12234 [3] Publisher https://arxiv.org/abs/2512.12234

Local Citation Graph (Related-Paper Links)

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