On Chebyshev Wells: Periods, Deformations, and Resurgence

Abstract

We study the geometry and mechanics (both classical and quantum) of potential wells described by squares of Chebyshev polynomials. We show that in a small neighbourhood of the locus cut out by them in the space of hyperelliptic curves, these systems exhibit low-orders/low-orders resurgence, where perturbative fluctuations about the vacuum determine perturbative fluctuations about non-perturbative saddles.

v2: 36 pages, 2 figures, typos corrected, references added and discussion improved, matches version to appear in PRD