Research Article

A Field Theory with Curvature and Anticurvature

Table 4

Comparison between nonlinear geometric field theories ().

TheoryGeometryNumber of field variables Material energy tensorMetricity condition Unification philosophyAnticurvature

Einstein-Cartan [42]Riemann-CartanPhenomenologicalSatisfiedViolatedNot defined
Metric-Affine [43, 44]Metric-AffinePhenomenologicalViolatedViolatedNot defined
Present WorkPAPGeometricSatisfiedSatisfiedClearly defined