caa a22 4500 445387718 CHVBK 20180317143037.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10714-011-1217-3 doi (NATIONALLICENCE)springer-10.1007/s10714-011-1217-3 Park Mu-In The Institute of Basic Sciences, Kunsan National University, 573-701, Kunsan, Korea aut Hořava gravity and gravitons at a conformal point [Elektronische Daten] [Mu-In Park] Recently Hořava proposed a renormalizable gravity theory with higher derivatives by abandoning the Lorentz invariance in UV. Here, I construct the Hořava model at λ=1/3, where a local anisotropic Weyl symmetry exists in the UV limit, in addition to the foliation-preserving diffeomorphism. By considering linear perturbations around Minkowski vacuum for the non-projectable version of the Hořava model, I show that the scalar graviton mode is completely disappeared and only the usual tensor graviton modes remain in the physical spectrum. The existence of the UV conformal symmetry is unique to the theory with the detailed balance and this may explain the importance of the detailed balance condition in quantum gravity. Springer Science+Business Media, LLC, 2011 Quantum gravity nationallicence Modified gravity nationallicence Lorentz violation nationallicence Conformal symmetry nationallicence General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/11(2011-11-01), 2979-2989 0001-7701 43:11<2979 2011 43 10714 https://doi.org/10.1007/s10714-011-1217-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-011-1217-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Park Mu-In The Institute of Basic Sciences, Kunsan National University, 573-701, Kunsan, Korea aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/11(2011-11-01), 2979-2989 0001-7701 43:11<2979 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer