Linear gravity from conformal symmetry
نویسندگان
چکیده
منابع مشابه
Asymptotic Symmetry Algebra of Conformal Gravity
We compute asymptotic symmetry algebras of conformal gravity. Due to more general boundary conditions allowed in conformal gravity in comparison to those in Einstein gravity, we can classify the corresponding algebras. The highest algebra for non-trivial boundary conditions is five dimensional and it leads to global geon solution with non-vanishing charges.
متن کاملConformal invariance from non-conformal gravity
We discuss the conditions under which classically conformally invariant models in four dimensions can arise out of non-conformal (Einstein) gravity. As an ‘existence proof’ that this is indeed possible we show how to derive N = 4 super Yang Mills theory with any compact gauge group G from non-conformal gauged N = 4 supergravity as a special flat space limit. We stress the role that the anticipa...
متن کاملGravity from Lorentz Symmetry Violation
In general relativity, the masslessness of gravitons can be traced to symmetry under diffeomorphisms. Here we consider another possibility, whereby the masslessness arises from spontaneous violation of Lorentz symmetry.
متن کاملCompactifications of conformal gravity
We study conformal theories of gravity, i.e. those whose action is invariant under the local transformation gμν → ω(x)gμν . As is well known, in order to obtain Einstein gravity in 4D it is necessary to introduce a scalar compensator with a VEV that spontaneously breaks the conformal invariance and generates the Planck mass. We show that the compactification of extra dimensions in a higher dime...
متن کاملConformal Fourth-rank Gravity
We consider the consequences of describing the metric properties of space-time through a quartic line element ds = Gμνλρdx dxdxdx. The associated ”metric” is a fourth-rank tensor Gμνλρ. We construct a theory for the gravitational field based on the fourth-rank metric Gμνλρ which is conformally invariant in four dimensions. In the absence of matter the fourth-rank metric becomes of the form Gμνλ...
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: Classical and Quantum Gravity
سال: 2019
ISSN: 0264-9381,1361-6382
DOI: 10.1088/1361-6382/ab0d3f