Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Gabadadze, G."'
It was previously found that in a certain parameter subspace of scalar-tensor theories emerging from massive gravity, the only stable field configuration created by static spherically symmetric sources was one with cosmological asymptotics. Moreover,
Externí odkaz:
http://arxiv.org/abs/1305.0271
In massive gravity the so-far-found black hole solutions on Minkowski space happen to convert horizons into a certain type of singularities. Here we explore whether these singularities can be avoided if space-time is not asymptotically Minkowskian. W
Externí odkaz:
http://arxiv.org/abs/1111.3613
We explore the cosmological solutions of a recently proposed extension of General Relativity with a Lorentz-invariant mass term. We show that the same constraint that removes the Boulware-Deser ghost in this theory also prohibits the existence of hom
Externí odkaz:
http://arxiv.org/abs/1108.5231
Autor:
Raby, S., Walker, T., Babu, K. S., Baer, H., Balantekin, A. B., Barger, V., Berezhiani, Z., de Gouvea, A., Dermisek, R., Dolgov, A., Perez, P. Fileviez, Gabadadze, G., Gal, A., Gondolo, P., Haxton, W., Kamyshkov, Y., Kayser, B., Kearns, E., Kopeliovich, B., Lande, K., Marfatia, D., Mohapatra, R. N., Nath, P., Nomura, Y., Olive, K. A., Pati, J., Profumo, S., Shrock, R., Tavartkiladze, Z., Whisnant, K., Wolfenstein, L.
The NSF has chosen the site for the Deep Underground Science and Engineering Laboratory (DUSEL) to be in Lead, South Dakota. In fact, the state of South Dakota has already stepped up to the plate and contributed its own funding for the proposed lab,
Externí odkaz:
http://arxiv.org/abs/0810.4551
Autor:
Gabadadze, G., Shifman, M.
Publikováno v:
Phys.Rev. D69 (2004) 124032
Large-distance modification of gravity may be the mechanism for solving the cosmological constant problem. A simple model of the large-distance modification -- four-dimensional (4D) gravity with the hard mass term-- is problematic from the theoretica
Externí odkaz:
http://arxiv.org/abs/hep-th/0312289
Recently we proposed that the acceleration of the Universe could be due to gravity leaking to extra dimensions. This scenario gives an alternative to the cosmological constant or quintessence. In [astro-ph/0106274] the authors claimed that this propo
Externí odkaz:
http://arxiv.org/abs/astro-ph/0106449
Publikováno v:
Phys.Lett. B497 (2001) 271-280
We propose a mechanism ensuring (quasi)localization of massless gauge fields on a brane. The mechanism does not rely on BPS properties of the brane and can be realized in any theory where charged particles are confined to the world-volume. The locali
Externí odkaz:
http://arxiv.org/abs/hep-th/0010071
Autor:
Gabadadze, G., Shifman, M.
Publikováno v:
Phys.Rev. D62 (2000) 114003
Large N gluodynamics was shown to have a set of metastable vacua with the gluonic domain walls interpolating between them. The walls may separate the genuine vacuum from an excited one, or two excited vacua which are unstable at finite N (here N is t
Externí odkaz:
http://arxiv.org/abs/hep-ph/0007345
Publikováno v:
Phys.Lett. B484 (2000) 129-132
Theories with infinite volume extra dimensions open exciting opportunities for particle physics. We argued recently that along with attractive features there are phenomenological difficulties in this class of models. In fact, there is no graviton zer
Externí odkaz:
http://arxiv.org/abs/hep-th/0003054
Publikováno v:
Phys.Lett. B484 (2000) 112-118
We address the issue of whether extra dimensions could have an infinite volume and yet reproduce the effects of observable four-dimensional gravity on a brane. There is no normalizable zero-mode graviton in this case, nevertheless correct Newton's la
Externí odkaz:
http://arxiv.org/abs/hep-th/0002190