Criticality in Einstein–Gauss–Bonnet gravity: gravity without graviton
نویسندگان
چکیده
منابع مشابه
Graviton propagator in loop quantum gravity
We compute some components of the graviton propagator in loop quantum gravity, using the spinfoam formalism, up to some second order terms in the expansion parameter.
متن کاملScreening the Graviton Background, Graviton Pairing, and Newtonian Gravity
It is shown that screening the background of super-strong interacting gravitons creates for any pair of bodies as an attraction force as well an repulsion force due to pressure of gravitons. For single gravitons, these forces are approximately balanced, but each of them is much bigger than a force of Newtonian attraction. If single gravitons are pairing, a body attraction force due to pressure ...
متن کاملSelf-organized criticality in quantum gravity
We study a simple model of spin network evolution motivated by the hypothesis that the emergence of classical space-time from a discrete microscopic dynamics may be a self-organized critical process. Self organized critical systems are statistical systems that naturally evolve without fine tuning to critical states in which correlation functions are scale invariant. We study several rules for e...
متن کاملThree-graviton vertex function in thermal quantum gravity.
The high temperature limit of the 3-graviton vertex function is studied in thermal quantum gravity, to one loop order. The leading (T ) contributions arising from internal gravitons are calculated and shown to be twice the ones associated with internal scalar particles, in correspondence with the two helicity states of the graviton. The gauge invariance of this result follows in consequence of ...
متن کاملThe graviton self-energy in thermal quantum gravity
We show generally that in thermal gravity, the one-particle irreducible 2point function depends on the choice of the basic graviton fields. We derive the relevant properties of a physical graviton self-energy, which is independent of the parametrization of the graviton field. An explicit expression for the graviton self-energy at high-temperature is given to one-loop order.
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: 2016
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-016-4389-x