187 citations · 752 across the 30 of their papers we have counts for
30 papers
RG studies of scalar-field models of long-range interactions
Alfio M. Bonanno, S. R. Haridev, Gaurav Narain
In this work we studies the long-range interactions in non-gravitational field theories and their behaviour in the deep infrared. To model such effects, we consider a nonlocal scal…
Surprises in Lorentzian path-integral of Gauss-Bonnet gravity
Gaurav Narain
In this paper we study the Lorentzian path-integral of Gauss-Bonnet gravity in the mini-superspace approximation in four spacetime dimensions and investigate the transition amplitu…
On Gauss-bonnet gravity and boundary conditions in Lorentzian path-integral quantization
Gaurav Narain
Recently there has been a surge of interest in studying Lorentzian quantum cosmology using Picard-Lefschetz methods. The present paper aims to explore the Lorentzian path-integral…
Lorentzian quantum cosmology in novel Gauss-Bonnet gravity from Picard-Lefschetz methods
Gaurav Narain, Hai-Qing Zhang
In this paper we study some aspects of classical and quantum cosmology in the novel-Gauss-Bonnet (nGB) gravity in four space-time dimensions. Starting with a generalised Friedmann-…
Cosmic evolution in novel-Gauss Bonnet Gravity
Gaurav Narain, Hai-Qing Zhang
In this short paper we investigate any non-trivial effect the novel Gauss-Bonnet gravity may give rise in the cosmic evolution of the Universe in four spacetime dimensions. We star…
Lorentzian quantum cosmology with correction
Gaurav Narain, Hai-Qing Zhang
Quantum mechanical transition amplitudes directly tells the probability of each transition and which one is more favourable. Path-integrals offers a systematic methodology to compu…