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November 9, 2025Open Access

SC^* Superconductivity and Spin Stiffnesses in the SU (2) Gauge Theory of the Two-Dimensional Hubbard Model

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Authors

DVDemetrio VilardiPBPietro M. Bonetti

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Overview

This analysis uncovers that superconductivity reduces spin stiffness in a fractionalized system, suggesting its role in magnetic stability.

Key Points

  • Superconductivity reduces spin stiffnesses, enhancing quantum spin fluctuations and affecting magnetic stability.
  • Spinons are fractionalized within the two-dimensional Hubbard model and described by a non-linear sigma model.
  • The method involves the SU(2) gauge theory of spin fluctuations, focusing on their feedback effects.
  • This finding implies that superconductivity could play a critical role in stabilizing quantum disorder against magnetic ordering.

Cite This Study

Vilardi et al. (2025) studied this question.

synapsesocial.com/papers/690fdcdaf60c54d04ea381a6https://doi.org/10.48550/arxiv.2511.03436
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