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Article Dans Une Revue Physical Review D Année : 2010

A note on the Plebanski action with cosmological constant and an Immirzi parameter

Résumé

We study the field equations of the Plebanski action for general relativity when both the cosmological constant and an Immirzi parameter are present. We show that the Lagrange multiplier, which usually gets identified with the Weyl curvature, now acquires a trace part. Some consequences of this for a class of modified gravity theories recently proposed in the literature are briefly discussed.
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hal-00410871 , version 1 (12-09-2023)

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Lee Smolin, Simone Speziale. A note on the Plebanski action with cosmological constant and an Immirzi parameter. Physical Review D, 2010, pp.024032. ⟨hal-00410871⟩
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