Noncovariance of field theories quantized on the light cone which are not scale invariant
Abstract
It is shown from spectral representations involving the energy-momentum tensor that in general a field theory quantized on the light cone (as opposed to the case in which an equal-time-quantized theory is merely rewritten in terms of light-cone coordinates) does not possess a Lorentz-invariant vacuum state. The sole exception to this result occurs in cases for which one has scale invariance.
- Publication:
-
Physical Review D
- Pub Date:
- November 1981
- DOI:
- 10.1103/PhysRevD.24.2605
- Bibcode:
- 1981PhRvD..24.2605H