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  - https://doi.org/10.1007/s00220-012-1641-6
SN  - 0010-3616
SN  - 1432-0916
VL  - 321
IS  - 2
SP  - 283
EP  - 310
PB  - Springer
CY  - New York
ER  -