122 citations · 1k across the 49 of their papers we have counts for
5 papers · 1 filter
Axion Dark Matter Search with Interferometric Gravitational Wave Detectors
Koji Nagano, Ippei Obata, Tomohiro Fujita +1
Axion dark matter differentiates the phase velocities of the circular-polarized photons. In Phys.Rev.Lett. 123 (2019) no.11, 111301, we have proposed a scheme to measure the phase…
Generation of Primordial Black Holes and Gravitational Waves from Dilaton-Gauge Field Dynamics
Masahiro Kawasaki, Hiromasa Nakatsuka, Ippei Obata
We study the observational signatures from particle production of a gauge field kinetically coupled to an inflaton. Regarding the form of gauge kinetic function, we consider…
DANCE: Dark matter Axion search with riNg Cavity Experiment
Yuta Michimura, Yuka Oshima, Taihei Watanabe +6
We have proposed a new approach to search for axion dark matter with an optical ring cavity [Phys. Rev. Lett. 121, 161301 (2018)]. The coupling of photons to axions or axion-like p…
Axion Dark Matter Search with Interferometric Gravitational Wave Detectors
Koji Nagano, Tomohiro Fujita, Yuta Michimura +1
Axion dark matter differentiates the phase velocities of the circular-polarized photons. In this Letter, a scheme to measure the phase difference by using a linear optical cavity i…
Non-sphericity of ultralight axion dark matter haloes in the Galactic dwarf spheroidal galaxies
Kohei Hayashi, Ippei Obata
Ultralight-axion (ULA) dark matter is one of the possible solutions to resolve small-scale problems, especially the core-cusp problem. This is because ULA dark matter can create a…