Resurgence in the O(4) sigma model
نویسندگان
چکیده
We analyze the free energy of integrable two dimensional O(4) sigma model in a magnetic field. use Volin's method to extract high number (2000) perturbative coefficients with very precision. The factorial growth these are regulated by switching Borel transform, where we perform several asymptotic analysis. High precision data allowed identify Stokes constants and alien derivatives exact expressions. These reveal nice resurgence structure which enables formulate first few terms ambiguity trans-series. check results against direct numerical solution integral equation find complete agreement.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2021
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep05(2021)253