Birkhoff’s theorem in f(T) gravity
نویسندگان
چکیده
منابع مشابه
The Goldberg-Sachs theorem in linearized gravity
The Goldberg-Sachs theorem has been very useful in constructing algebraically special exact solutions of Einstein vacuum equation. Most of the physical meaningful vacuum exact solutions are algebraically special. We show that the Goldberg-Sachs theorem is not true in linearized gravity. This is a remarkable result, which gives light on the understanding of the physical meaning of the linearized...
متن کاملVirial Theorem in Nonlocal Newtonian Gravity
Nonlocal gravity is the recent classical nonlocal generalization of Einstein’s theory of gravitation in which the past history of the gravitational field is taken into account. In this theory, nonlocality appears to simulate dark matter. The virial theorem for the Newtonian regime of nonlocal gravity theory is derived and its consequences for “isolated" astronomical systems in virial equilibriu...
متن کاملThe Birkhoff theorem for topologically massive gravity
We derive the general Σ2×S solution of topologically massive gravity in vacuum and in presence of a cosmological constant. The field equations reduce to three-dimensional Einstein equations and the solution has constant Ricci tensor. We briefly discuss the emergence of non-Ricci flat solutions when spin is introduced. Pac(s) numbers: 04.50.+h, 04.20.Cv, 04.20.Jb Keyword(s): Alternative theories...
متن کاملGravity dual for the Hofman-Strominger theorem
Yu Nakayama Institute for the Physics and Mathematics of the Universe, Todai Institutes for Advanced Study, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan California Institute of Technology, 452-48, Pasadena, California 91125, USA (Received 15 February 2012; published 27 April 2012) We provide a gravity counterpart of the theorem by Hofman and Strominger that in (1þ 1) d...
متن کاملOn the equivalence theorem in f(R)-type generalized gravity
We investigate whether the equivalence theorem in f(R)-type gravity is valid also in quantum theory. It is shown that, if the canonical quantization is assumed, the equivalence does not hold in quantum theory.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2011
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-011-1755-6