With the help of harmonic gauge condition, graviton propagator can be(adsbygoogle = window.adsbygoogle || []).push({});

obtained by weak field expansion around the flat Minkowski metric

(assuming cosmological constant is zero).

Gravitation theory can also be written in the first order (Palatini)

formalism. In stead of the metric, the basic fields are vierbein e and

spin connection w. For weak field expansion around the flat space-time

(e = e0 = constant, w = 0), what are the propagators for vierbein and

spin connection respectively? Are there any references on the graviton

propagator in the first order formalism? Thanks!

Max

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# What is the graviton propagator in the first order formalism?

**Physics Forums | Science Articles, Homework Help, Discussion**