71 citations · 1.8k across the 167 of their papers we have counts for
6 papers · 1 filter
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…
Dispersionless Fermionic KdV
J. Barcelos-Neto, Alin Constandache, Ashok Das
We analyze the dispersionless limits of the Kupershmidt equation, the SUSY KdV-B equation and the SUSY KdV equation. We present the Lax description for each of these models and bri…
On Neutrino Masses and Mixings from Extra Dimensions
Ashok Das, Otto C. W. Kong
In the framework of a Kaluza-Klein type theory with the Standard Model fields localized on a 4-dimensional section while gravity propagates in a full -dimensional space-time,…
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…
Supersymmetry and Singular Potentials
Ashok Das, Sergio A. Pernice
The breaking of supersymmetry due to singular potentials in supersymmetric quantum mechanics is critically analyzed. It is shown that, when properly regularized, these potentials r…
Retarded thermal Greens functions and forward scattering amplitudes at two loops
F. T. Brandt, Ashok Das, J. Frenkel
In this paper, we extend our earlier one loop analysis to two loops and give a simple diagrammatic description for the retarded Greens functions at finite temperature, in terms of…