107 citations · 184 across the 11 of their papers we have counts for
12 papers
Feasibility of Distributed Fault-Tolerant Quantum Computing: From Quantum Links to Algorithms
Takumi Kobayashi, Hodaka Kurokawa, Yasunari Suzuki +1
Practical fault-tolerant quantum computation requires a large number of physical qubits, posing a major challenge for scaling up individual quantum processors. Distributed architec…
Ultra-Weak-Pump Microwave-to-Optical Quantum Transduction via a Single Color Center
Kyosuke Goto, Hodaka Kurokawa, Hideo Kosaka +1
Scaling up superconducting quantum processors remains a central challenge for realizing fault-tolerant quantum computation. Although distributed architectures based on optical phot…
Spatially Resolved Optical Responses of a High-Kinetic-Inductance Microwave Resonator
R. Hirotsuru, H. Kurokawa, K. Takaki +2
Understanding the optical response of a high-kinetic-inductance microwave resonator is crucial for applications ranging from single-photon detection to quantum transduction between…
Quantum Orbital-State Control of a Neutral Nitrogen-Vacancy Center at Millikelvin Temperatures
Hodaka Kurokawa, Shintaro Nakazato, Toshiharu Makino +4
A neutral nitrogen-vacancy center (NV) is promising for realizing strong coupling with a single microwave photon due to its large electric field sensitivity, although it is sus…
Low-Temperature Characteristics of an AlN/Diamond Surface Acoustic Wave Resonator
Moyuki Yamamoto, Hodaka Kurokawa, Satoshi Fujii +3
Phonons confined in mechanical resonators can be coupled to a variety of quantum systems and are expected to be applied to hybrid quantum systems. Diamond surface acoustic wave (SA…
Coherent Electric-Field Control of Orbital state in a Neutral Nitrogen-Vacancy Center
Hodaka Kurokawa, Keidai Wakamatsu, Shintaro Nakazato +4
The coherent control of the orbital state is crucial for color centers in diamonds for realizing extremely low-power manipulation. Here, we propose the neutrally charged nitrogen-v…
Diamond optomechanical cavity with a color center for microwave-to-optical quantum interfaces
Byunggi Kim, Hodaka Kurokawa, Katsuta Sakai +3
Quantum transduction between microwave and optical photons plays a key role in quantum communication among remote qubits. Although the quantum transduction schemes generating commu…
Thermodynamic approach for enhancing superconducting critical current performance
Masashi Miura, Go Tsuchiya, Takumu Harada +14
The addition of artificial pinning centers has led to an impressive increase in critical current density () in a superconductor, enabling record-breaking all-superconduc…
Remote Entanglement of Superconducting Qubits via Solid-State Spin Quantum Memories
Hodaka Kurokawa, Moyuki Yamamoto, Yuhei Sekiguchi +1
Quantum communication between remote superconducting systems is being studied intensively to increase the number of integrated superconducting qubits and to realize a distributed q…
Relationships between Superconductivity and Nematicity in FeSeTe () Films Studied by Complex Conductivity Measurements
H. Kurokawa, S. Nakamura, J. Zhao +7
We measured the complex conductivity, , of FeSeTe () films in the superconducting state which show a drastic increase of the superconducting transition temp…
Dynamic Evolution of Flux Distributions in a Pulse-driven Superconductor by High-speed Magneto-optical Imaging
H. Kurokawa, Y. Kinoshita, F. Nabeshima +2
The accurate understanding of flux dynamics is essential for the design and operation of superconducting circuits. The time evolution of flux-density distribution in an NbN strip b…
Deep Learning Model for Finding New Superconductors
Tomohiko Konno, Hodaka Kurokawa, Fuyuki Nabeshima +4
Exploration of new superconductors still relies on the experience and intuition of experts and is largely a process of experimental trial and error. In one study, only 3% of the ca…