Quantum discontinuity between zero and infinitesimal graviton mass with a Lambda term
F. A. Dilkes, M. J. Duff, James T. Liu, H. Sati
TL;DR
It is shown that the recently demonstrated absence of the usual discontinuity for massive spin 2 with a Lambda term is an artifact of the tree approximation, and that the discontinuity reappears at one loop.
Abstract
We show that the recently demonstrated absence of the usual discontinuity for massive spin 2 with a Lambda term is an artifact of the tree approximation, and that the discontinuity reappears at one loop.