89 citations · 1.1k across the 69 of their papers we have counts for
Showing 2020Show all
2 papers · 1 filter
hep-th2020★ 30 cited
Resurgence in the O(4) sigma model
Michael C. Abbott, Zoltán Bajnok, János Balog +2
We analyze the free energy of the integrable two dimensional O(4) sigma model in a magnetic field. We use Volin's method to extract high number (2000) of perturbative coefficients…
hep-th2020★ 24 cited
From perturbative to non-perturbative in the O(4) sigma model
Michael C. Abbott, Zoltán Bajnok, János Balog +1
We study the resurgent trans-series for the free energy of the two-dimensional O(4) sigma model in a magnetic field. Exploiting integrability, we obtain very high-order perturbativ…