Big bounce and dark energy in gravity with torsion

The aspects of modern cosmology related with new physics, predicted by particle theory are discussed here. The models of inflation, baryosynthesis, dark matter and dark energy, physics of very early Universe, cosmological nucleosynthesis, origin and properties of cosmic microwave background radiation, formation of large scale structure of the Universe, role and distribution of dark matter in the modern Universe are discussed here.

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Big bounce and dark energy in gravity with torsion

New postby Maxim Khlopov on Mon 25 Jun 2012 16:51

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?
[i]Хлопов Максим Юрьевич
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