On cosmic no-hair in bimetric gravity and the Higuchi bound
نویسندگان
چکیده
منابع مشابه
No consistent bimetric gravity?
Two-tensor, bimetric (or ‘‘f-g’’) gravity (BMG) was born as the fusion of the strong-interaction resonances of the 1960s (specifically that of a massive spin 2 field) with general relativity’s (GR) massless metric [1]. The idea was to join the two symmetrically by giving each its own Einstein-Hilbert action, then coupling the two resulting ‘‘spaces’’ through a nonderivative ‘‘mass term’’ that n...
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Authors Hohmann and Wohlfarth have put forward a no-go theorem for bimetric gravity with positive and negative mass in arXiv:0908.3384v1 [gr-qc]. This comment shows that their no-go theorem does not apply to arXiv:0807.2838v1 [gr-qc]. In a recent paper [1] authors Hohmann and Wohlfarth present a no-go theorem for bimetric gravity with positive and negative mass. Based on five assumptions they p...
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In the last decades, we have witnessed an astonishing progress in our understanding of the Early Universe and its evolution into the actual con guration we observe. General Relativity has been a key ingredient for this achievement, and it certainly provides the correct way to couple matter elds to gravity. However, in other fundamental theories (string theory, for example), we can nd an immense...
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Pierre Gratia,1, ∗ Wayne Hu,2, † and Mark Wyman2, 3, ‡ Department of Physics, University of Chicago, Chicago, Illinois 60637, U.S.A. Kavli Institute for Cosmological Physics, Department of Astronomy & Astrophysics, Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, U.S.A. Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, NY, 10...
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ژورنال
عنوان ژورنال: Progress of Theoretical and Experimental Physics
سال: 2013
ISSN: 2050-3911
DOI: 10.1093/ptep/ptt004