TY - JOUR
A1 - Pfäffle, Frank
A1 - Stephan, Christoph A.
T1 - Chiral asymmetry and the spectral action
JF - Communications in mathematical physics
N2 - We consider orthogonal connections with arbitrary torsion on compact Riemannian manifolds. For the induced Dirac operators, twisted Dirac operators and Dirac operators of Chamseddine-Connes type we compute the spectral action. In addition to the Einstein-Hilbert action and the bosonic part of the Standard Model Lagrangian we find the Holst term from Loop Quantum Gravity, a coupling of the Holst term to the scalar curvature and a prediction for the value of the Barbero-Immirzi parameter.
Y1 - 2013
U6 - http://dx.doi.org/10.1007/s00220-012-1641-6
SN - 0010-3616 (print)
SN - 1432-0916 (online)
VL - 321
IS - 2
SP - 283
EP - 310
PB - Springer
CY - New York
ER -