11 citations · 15 across the 3 of their papers we have counts for
4 papers
Dimensional (In)dependence of Lorentzian Quantum Cosmology
Masazumi Honda, Hiroki Matsui, Kota Numajiri +2
We study transition amplitudes of the quantum universe in -dimensional spacetime within the de Sitter minisuperspace approximation in Einstein gravity. Using the Lorentzian path…
Jackiw-Teitelboim Gravity and Lorentzian Quantum Cosmology
Masazumi Honda, Hiroki Matsui, Kota Numajiri +1
We directly evaluate the probability amplitudes in Jackiw-Teitelboim (JT) gravity using the Lorentzian path integral formulation. By imposing boundary conditions on the scale facto…
Exactly solvable stochastic spectator
Masazumi Honda, Ryusuke Jinno, Koki Tokeshi
The stochastic formalism of inflation allows us to describe the scalar-field dynamics in a non-perturbative way. The correspondence between the diffusion and Schrödinger equations…
Resurgence in Lorentzian quantum cosmology: No-boundary saddles and resummation of quantum gravity corrections around tunneling saddle points
Masazumi Honda, Hiroki Matsui, Kazumasa Okabayashi +1
We revisit the path-integral approach to the wave function of the Universe by utilizing Lefschetz thimble analyses and resurgence theory. The traditional Euclidean path-integral of…