99 citations · 131 across the 6 of their papers we have counts for
6 papers
Bispectrum from inflation/bouncing Universe in VCDM
Alexander Ganz, Paul Martens, Shinji Mukohyama +1
We discuss the non-linear interactions within the VCDM model, a type II minimally modified gravity model with the same number of degrees of freedom as in General Relativity but not…
Spherical scalar collapse in a type-II minimally modified gravity
Atabak Fathe Jalali, Paul Martens, Shinji Mukohyama
We investigate the spherically-symmetric gravitational collapse of a massless scalar field in the framework of a type-II minimally modified gravity theory called VCDM. This theory…
Bouncing Cosmology in VCDM
Alexander Ganz, Paul Martens, Shinji Mukohyama +1
We construct an asymmetric bouncing scenario within the VCDM model - also known as type-II minimally modified gravity -, a modified gravity theory with two local physical degrees o…
Reheating after relaxation of large cosmological constant
Paul Martens, Shinji Mukohyama, Ryo Namba
We present a cosmological model of an early-time scenario that incorporates a relaxation process of the would-be large vacuum energy, followed by a reheating era connecting to the…
DeWitt wave function in Hořava-Lifshitz cosmology with tensor perturbation
Paul Martens, Hiroki Matsui, Shinji Mukohyama
We present a well-tempered DeWitt wave function, which vanishes at the classical big-bang singularity, in Hořava-Lifshitz (HL) cosmology with tensor perturbation, both analytically…
Stability of the fundamental quasinormal mode in time-domain observations against small perturbations
Emanuele Berti, Vitor Cardoso, Mark Ho-Yeuk Cheung +4
Black hole spectroscopy with gravitational waves is an important tool to measure the mass and spin of astrophysical black holes and to test their Kerr nature. Next-generation groun…