21 citations · 44 across the 7 of their papers we have counts for
7 papers
Coherent collective response in many-qubit systems for dark matter detection
Ryuichiro Kitano, Ryoto Takai
We propose an array of Ramsey-type interferometers using superposition states, , as a sensor to detect wave-like dark matter. Af…
Quantum sensing of high-frequency gravitational waves with ion crystals
Asuka Ito, Ryuichiro Kitano, Wakutaka Nakano +1
A detection method for high-frequency gravitational waves using two-dimensional ion crystals is investigated. Gravitational waves can resonantly excite the drumhead modes of the io…
Lepton number violating signals of a parity symmetric model at TRISTAN
Keisuke Harigaya, Ryuichiro Kitano, Ryoto Takai
The parity solution to the strong CP problem necessarily extends the Standard Model to include the SU gauge sector and imposes restrictions on the structure of the Yuk…
Probing high-frequency gravitational waves with entangled vibrational qubits in linear Paul traps
Ryoto Takai
This work investigates the use of linear Paul traps as quantum sensors for detecting megahertz gravitational waves. Single-ion configurations exploit graviton-photon conversion in…
Higgs boson production at colliders
Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo +4
We study Higgs boson production at colliders at high energy. Since both initial-state particles are positively charged, there is no boson fusion at the leading order,…
Quantum entanglement of ions for light dark matter detection
Asuka Ito, Ryuichiro Kitano, Wakutaka Nakano +1
A detection scheme is explored for light dark matter, such as axion dark matter or dark photon dark matter, using a Paul ion trap system. We first demonstrate that a qubit, constru…
Lepton flavor physics at colliders
Kåre Fridell, Ryuichiro Kitano, Ryoto Takai
We discuss sensitivities to lepton flavor violating (and conserving) interactions at future muon colliders, especially at colliders. Compared with the searches for rare de…