N. Ohta

activity

19912023

most citedProbing the Coupling between Dark Components of the Universe

386 citations · 7.3k across the 146 of their papers we have counts for

collaborators

Showing 2018Show all

3 papers · 1 filter

hep-th2018★ 69 cited

Asymptotic safety and field parametrization dependence in the f(R) truncation

Gustavo P. de Brito, Nobuyoshi Ohta, Antonio D. Pereira +2

We study the dependence on field parametrization of the functional renormalization group equation in the $f (R)$ truncation for the effective average action. We perform a systematic…

hep-th2018★ 18 cited

$f (R, R_{μν}^{2})$ at one loop

N. Ohta, R. Percacci, A. D. Pereira

We compute the one-loop divergences in a theory of gravity with Lagrangian of the general form $f (R, R_{μν} R^{μν})$ , on an Einstein background. We also establish that the one-loop e…

hep-th2018★ 38 cited

Quantum Equivalence of $f (R)$ Gravity and Scalar-tensor Theories in the Jordan and Einstein Frames

Nobuyoshi Ohta

The $f (R)$ gravity and scalar-tensor theory are known to be equivalent at the classical level. We study if this equivalence is valid at the quantum level. There are two description…

Asymptotic safety and field parametrization dependence in the f(R) truncation

f(R,Rμν2​) at one loop

Quantum Equivalence of f(R) Gravity and Scalar-tensor Theories in the Jordan and Einstein Frames

$f (R, R_{μν}^{2})$ at one loop

Quantum Equivalence of $f (R)$ Gravity and Scalar-tensor Theories in the Jordan and Einstein Frames