Big bounce and dark energy in gravity with torsion in VIA lecture by Prof. Nikodem Poplawski (Indiana University, USA).
The following comments and questions were put in Discussion:
Houri Ziaeepour: You said that torsion exist only in presence of fermions. But cosmological constant is everywhere including in vacuum. Can you please explain this apparent contradiction
Richard Weiner: Torsion is based on fermion spin. This introduces baryonic or leptonic qunatum numbers. What are the implications of these for big bounce, inflation and other applications of torsion?
Houri Ziaeepour: In this case your are actually adding a large number of fields in the model. because connection has more components than metric
Richard Weiner: The quantum numbers are not corrections but fundamnetal
Richard Weiner: Spin itself is a quantum effect. Does this mean that torsion itself is a pure quantum effect?