421 citations · 9k across the 167 of their papers we have counts for
8 papers · 1 filter
Finite Temperature Effective Action in Monopole Background
Gerald Dunne, Joshua Feinberg
We compute the CP-odd part of the finite temperature effective action for massive Dirac fermions in the presence of a Dirac monopole. We confirm that the induced charge is temperat…
Large Gauge Ward Identity
Ashok Das, Gerald Dunne, J. Frenkel
We study the question of the Ward identity for "large" gauge invariance in 0+1 dimensional theories. We derive the relevant Ward identities for a single flavor fermion and a single…
Derivative Expansion and Soliton Masses
Gerald V. Dunne
We present a simple algorithm to implement the generalized derivative expansion introduced previously by L-H. Chan, and apply it to the calculation of the one-loop mass correction…
Two-Loop Euler-Heisenberg QED Pair-Production Rate
Gerald V. Dunne, Christian Schubert
We study the divergence of large-order perturbation theory in the worldline expression for the two-loop Euler-Heisenberg QED effective Lagrangian in a constant magnetic field. The…
Lam'e Instantons
Gerald V. Dunne, Kumar Rao
We perform a precise analytic test of the instanton approximation by comparing the exact band spectrum of the periodic Lamé potential to the tight-binding, instanton and WKB approx…
Non-static Dimensional Reduction of QED_3 at Finite Temperature
Ashok Das, Gerald Dunne
We study an extreme non-static limit of 2+1-dimensional QED obtained by making a dimensional reduction so that all fields are spatially uniform but time dependent. This dimensional…
Aspects of Chern-Simons Theory
Gerald V. Dunne
Lectures at the 1998 Les Houches Summer School: Topological Aspects of Low Dimensional Systems. These lectures contain an introduction to various aspects of Chern-Simons gauge theo…
Borel Summation of the Derivative Expansion and Effective Actions
Gerald V. Dunne, Theodore M. Hall
We give an explicit demonstration that the derivative expansion of the QED effective action is a divergent but Borel summable asymptotic series, for a particular inhomogeneous back…