String-localized fields of higher spin: massless limit and stress-energy tensor

40th LQP Workshop "Foundations and Constructive Aspects of QFT"
Karl-Henning Rehren on June 24, 2017

"Lifting" the massless limit of Wigner representations of higher spin to
the associated local quantum fields, encounters several obstructions due
to the well-known conflicts between Hilbert space positivity, covariance and
In a unified setting using "string-localization", these conflicts can be
resolved, and details of the decoupling of the degrees of freedom can be
Joint work with Jens Mund, Bert Schroer
(arXiv:1703.04407 and 04408)

Related papers:
Helicity decoupling in the massless limit of massive tensor fields