Quantum discontinuity between zero and infinitesimal graviton mass with a Lambda term.
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.
Dilkes
F A
FA
Michigan Center for Theoretical Physics, Randall Laboratory, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120, USA. fadilkes@umich.edu
Duff
M J
MJ
Liu
J T
JT
Sati
H
H