In Thiemann-regularized loop quantum cosmology, the mu0 scheme produces pre-bounce emergent matter with equation of state w = -1/3 (string gas), while the bar-mu scheme produces an emergent cosmological constant, and mu0 stays unviable with positive Lambda.
For these numerical solutions we assume Λ = 10−10 in Planck units.We choose as initial state at late times φ(t0) = 13.5 a universe withp(t0) = 6× 104 andπφ(t0) = 300
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Some physical implications of regularization ambiguities in SU(2) gauge-invariant loop quantum cosmology
In Thiemann-regularized loop quantum cosmology, the mu0 scheme produces pre-bounce emergent matter with equation of state w = -1/3 (string gas), while the bar-mu scheme produces an emergent cosmological constant, and mu0 stays unviable with positive Lambda.