208 citations · 2.2k across the 116 of their papers we have counts for
6 papers · 1 filter
Magnetic field sensing with quantum error detection under the effect of energy relaxation
Yuichiro Matsuzaki, Simon Benjamin
A solid state spin is an attractive system with which to realize an ultra-sensitive magnetic field sensor. A spin superposition state will acquire a phase induced by the target fie…
Superradiance with an ensemble of superconducting flux qubits
Neill Lambert, Yuichiro Matsuzaki, Kosuke Kakuyanagi +3
Superconducting flux qubits are a promising candidate for realizing quantum information processing and quantum simulations. Such devices behave like artificial atoms, with the adva…
Projective measurement of energy on an ensemble of qubits with unknown frequencies
Yuichiro Matsuzaki, Shojun Nakayama, Akihito Soeda +2
In projective measurements of energy, a target system is projected to an eigenstate of the system Hamiltonian, and the measurement outcomes provide the information of corresponding…
Hybrid quantum magnetic field sensor with an electron spin and a nuclear spin in diamond
Yuichiro Matsuzaki, Takaaki Shimooka, Hirotaka Tanaka +3
Recently, magnetic field sensors based on an electron spin of a nitrogen vacancy (NV) center in diamond have been studied both from an experimental and theoretical point of view. T…
Observation of collective coupling between an engineered ensemble of macroscopic artificial atoms and a superconducting resonator
Kosuke Kakuyanagi, Yuichiro Matsuzaki, Corentin Deprez +5
The hybridization of distinct quantum systems is now seen as an effective way to engineer the properties of an entire system leading to applications in quantum metamaterials, quant…
A strict experimental test of macroscopic realism in a superconducting flux qubit
George C. Knee, Kosuke Kakuyanagi, Mao-Chuang Yeh +6
Macroscopic realism is the name for a class of modifications to quantum theory that allow macroscopic objects to be described in a measurement-independent manner, while largely pre…