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arXiv · 2309.06206

Mass of quantum topological excitations and order parameter finite size dependence

Gesualdo Delfino·Marianna Sorba
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Abstract

We consider the spontaneously broken regime of the $O(n)$ vector model in $d=n+1$ space-time dimensions, with boundary conditions enforcing the presence of a topological defect line. Comparing theory and finite size dependence of one-point functions observed in recent numerical simulations we argue that the mass of the underlying topological quantum particle becomes infinite when $d\geq 4$.

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Gesualdo Delfino, Marianna Sorba. 2023-09-12. Mass of quantum topological excitations and order parameter finite size dependence. https://doi.org/10.1088/1751-8121%2Fad24c8

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