180 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute of Photonic SciencesES13 papers
- Lund UniversitySE6 papers
- Barcelona Institute of Science and TechnologyES5 papers
- Institució Catalana de Recerca i Estudis AvançatsES5 papers
- KTH Royal Institute of TechnologySE5 papers
- Karolinska InstitutetSE4 papers
- Karolinska University HospitalSE4 papers
- Chalmers University of TechnologySE3 papers
- ETH ZurichCH3 papers
- Bangor UniversityGB2 papers
- Center for Theoretical PhysicsPL2 papers
- Centre for Research and Technology HellasGR2 papers
10 papers · 1 filter
Investigations into Light-front Quartic Interactions for Massless Fields (I): Non-constructibility of Higher Spin Quartic Amplitudes
Anders K. H. Bengtsson
The dynamical commutators of the light-front Poincaré algebra yield first order differential equations in the momenta for the interaction vertex operators. The homogeneous so…
Quartic amplitudes for Minkowski higher spin
Anders K. H. Bengtsson
The problem of finding general quartic interaction terms between fields of higher helicities on the light-front is discussed from the point of view of calculating the corresponding…
A Riccati type PDE for light-front higher helicity vertices
Anders K. H. Bengtsson
This paper is based on a curious observation about an equation related to the tracelessness constraints of higher spin gauge fields. The equation also occurs in the theory of conti…
BRST Theory for Continuous Spin
Anders K. H. Bengtsson
Some puzzling aspects of higher spin field theory in Minkowski space-time, such as the tracelessness constraints and the search for an underlying physical principle, are discussed.…
Counterterms in Gravity in the Light-Front Formulation and a D=2 Conformal-like Symmetry in Gravity
Anders K. H. Bengtsson, Lars Brink, Sung-Soo Kim
In this paper we discuss gravity in the light-front formulation (light-cone gauge) and show how possible counterterms arise. We find that Poincare invariance is not enough to find…
Systematics of Higher-spin Light-front Interactions
Anders K. H. Bengtsson
The original cubic interaction terms for higher spin gauge fields in four dimensions and their reformulation using Fock space vertex operators is reviewed. As a new result, the com…
Mechanical Models for Higher Spin Gauge Fields
Anders K. H. Bengtsson
Returning to an old idea of a certain two-particle relativistic harmonic oscillator as an underlying mechanical model for higher spin gauge fields, various space-time pictures are…
Towards Unifying Structures in Higher Spin Gauge Symmetry
Anders K. H. Bengtsson
This article is expository in nature, outlining some of the many still incompletely understood features of higher spin field theory. We are mainly considering higher spin gauge fie…
Structure of Higher Spin Gauge Interactions
Anders K. H. Bengtsson
In a previous paper, higher spin gauge field theory was formulated in an abstract way, essentially only keeping enough machinery to discuss "gauge invariance" of an "action". The a…
An Abstract Interface to Higher Spin Gauge Field Theory
A. K. H. Bengtsson
A comprehensive approach to the theory of higher spin gauge fields is proposed. By explicitly separating out details of implementation from general principles, it becomes possible…