On constrained instantons
Abstract
A simple method is presented for doing systematic constrained instanton calculations in models such as φ4 or Higgs theories where the presence of a mass term prevents the existence of a classical solution. As an application, instanton estimates of the large-order behavior of the perturbation series in massive φ44 theory are derived. (These estimates agree with those of Frishman and Yankielowicz.)
- Publication:
-
Nuclear Physics B
- Pub Date:
- November 1981
- DOI:
- 10.1016/0550-3213(81)90307-2
- Bibcode:
- 1981NuPhB.191..429A