Theory Seminar

Theory Seminar/M.Yamada

Start:2016/06/28 (Tue) 11:00 AM
End:2016/06/28 (Tue) 12:00 PM
Location:Kenkyu-honkan 1F meeting room 1

Speaker:Dr. Masatoshi Yamada(Kanazawa University)
Lecture:Non-perturbatively renormalizable quantum gravity and hierarchy problem
Contact:yuta Hamada/



We discuss the possibility of the non-perturbatively renormalizable quantum gravity which is called asymptotically safe gravity. The functional renormalization group method is used to analyze the system. I first review the basic ideas of the asymptotically safe gravity and the functional renormalization group. After that, we consider the asymptotic safety scenarios of the scalar-gravity system and the Higgs-Yukawa one coupled to quantum gravity. It is shown that the fermionic fluctuation makes the scalar mass and non-minimal coupling irrelevant. With this in mind, we discuss the hierarchy problem and the possibility of large non-minimal coupling.

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