657 citations · 2.4k across the 32 of their papers we have counts for
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Electron paramagnetic resonance spectroscopy using a dc-SQUID magnetometer directly coupled to an electron spin ensemble
Hiraku Toida, Yuichiro Matsuzaki, Kosuke Kakuyanagi +5
We demonstrate electron spin polarization detection and electron paramagnetic resonance (EPR) spectroscopy using a direct current superconducting quantum interference device (dc-SQ…
Optically detected magnetic resonance of high-density ensemble of NV centers in diamond
Yuichiro Matsuzaki, Hiroki Morishita, Takaaki Shimooka +7
Optically detected magnetic resonance (ODMR) is a way to characterize the NV centers. Recently, a remarkably sharp dip was observed in the ODMR with a high-density ensemble of NV c…
Improving the lifetime of the NV center ensemble coupled with a superconducting flux qubit by applying magnetic fields
Yuichiro Matsuzaki, Xiaobo Zhu, Kosuke Kakuyanagi +8
One of the promising systems to realize quantum computation is a hybrid system where a superconducting flux qubit plays a role of a quantum processor and the NV center ensemble is…
Ising interaction between capacitively-coupled superconducting flux qubits
Takahiko Satoh, Yuichiro Matsuzaki, Kosuke Kakuyanagi +3
Here, we propose a scheme to generate a controllable Ising interaction between superconducting flux qubits. Existing schemes rely on inducting couplings to realize Ising interactio…
Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward
Takahiko Satoh, Yuichiro Matsuzaki, Kosuke Kakuyanagi +4
Here, we propose a way to control the interaction between qubits with always-on Ising interaction. Unlike the standard method to change the interaction strength with unitary operat…