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arXiv · 2611.03874

Confining strings in the reconfined phase of trace deformed three dimensional $\mathrm{SU}(2)$ Yang-Mills theory

Claudio Bonati·Michele Caselle·Alessio Negro·Dario Panfalone·Lorenzo Verzichelli
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Abstract

Adding a trace deformation to the Yang-Mills action keeps the theory confining above the standard deconfinement temperature, in the so-called reconfined phase. We study the confining flux tube of the trace-deformed $\mathrm{SU}(2)$ theory in three dimensions with lattice simulations of Polyakov loop correlators. As the deformation increases, the ground state energy departs from the usual Nambu-Gotō effective string description, and deep in the reconfined phase the data are accurately described by the Polchinski-Yang rigid string, an effective string dominated by an extrinsic-curvature term.

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Claudio Bonati, Michele Caselle, Alessio Negro, Dario Panfalone, Lorenzo Verzichelli. 2026-11-02. Confining strings in the reconfined phase of trace deformed three dimensional $\mathrm{SU}(2)$ Yang-Mills theory. https://arxiv.org/abs/2611.03874

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