29 citations · 93 across the 10 of their papers we have counts for
6 papers · 1 filter
The Einstein-Maxwell system, Ward identities, and the Vilkovisky construction
N. K. Nielsen
The gauge fixing dependence of the one-loop effective action of quantum gravity in the proper-time representation is investigated for a space of arbitrary curvature, and the invest…
Instanton constraints in supersymmetric gauge theories II. N=2 Yang-Mills theory
N. K. Nielsen
The analysis in previous publications of the instanton constraints required to produce a finite action of the theory is carried out also for N=2 supersymmetric Yang-Mills theory.
Alternative approaches to the Casalbuoni-Brink-Schwarz Superparticle
Morten Nielsen, N. K. Nielsen
Wigner's method of induced representations is applied to the N=1 super-Poincare group, and by using a state corresponding to the basic vector of the little group as a Clifford vacu…
Explicit construction of constrained instantons
Morten Nielsen, N. K. Nielsen
Instantons in massless theories do not carry over to massive theories due to Derrick's theorem. This theorem can, however, be circumvented, if a constraint that restricts the scale…
Gauge theory of a massive relativistic spinning point particle
J. H. Lorentsen, N. K. Nielsen
A massive relativistic spinning point particle in any number of dimensions has in a previous article been shown to be described by first class constraints, which define a gauge the…
The relativistic top: An application of the BFV quantization procedure for systems with degenerate constraints
N. K. Nielsen, U. J. Quaade
The physical phase space of the relativistic top, as defined by Hanson and Regge, is expressed in terms of canonical coordinates of the Poincaré group manifold. The system is descr…