3 papers
hep-ph2026
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…
hep-ph2025
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…
hep-ph2025
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…