Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Nakamura, Yasunobu"'
Autor:
Uchaikin, Sergey V., Kim, Jinmyeong, Kutlu, Caglar, Ivanov, Boris I., Kim, Jinsu, van Loo, Arjan F., Nakamura, Yasunobu, Ahn, Saebyeok, Oh, Seonjeong, Ko, Minsu, Semertzidis, Yannis K.
This paper provides a comprehensive overview of the development of flux-driven Josephson Parametric Amplifiers (JPAs) as Quantum Noise Limited Amplifier for axion search experiments conducted at the Center for Axion and Precision Physics Research (CA
Externí odkaz:
http://arxiv.org/abs/2406.07899
Autor:
Kim, Younggeun, Jeong, Junu, Youn, SungWoo, Bae, Sungjae, van Loo, Arjan F., Nakamura, Yasunobu, Uchaikin, Sergey, Semertzidis, Yannis K.
The cavity haloscope is among the most widely adopted experimental platforms designed to detect dark matter axions with its principle relying on the conversion of axions into microwave photons in the presence of a strong magnetic field. The Josephson
Externí odkaz:
http://arxiv.org/abs/2404.18345
Striving for higher gate fidelity is crucial not only for enhancing existing noisy intermediate-scale quantum (NISQ) devices but also for unleashing the potential of fault-tolerant quantum computation through quantum error correction. A recently prop
Externí odkaz:
http://arxiv.org/abs/2402.18926
Autor:
Ahn, Saebyeok, Kim, JinMyeong, Ivanov, Boris I., Kwon, Ohjoon, Byun, HeeSu, van Loo, Arjan F., Par, SeongTae, Jeong, Junu, Lee, Soohyung, Kim, Jinsu, Kutlu, Çağlar, Yi, Andrew K., Nakamura, Yasunobu, Oh, Seonjeong, Ahn, Danho, Bae, SungJae, Choi, Hyoungsoon, Choi, Jihoon, Chong, Yonuk, Chung, Woohyun, Gkika, Violeta, Kim, Jihn E., Kim, Younggeun, Ko, Byeong Rok, Miceli, Lino, Lee, Doyu, Lee, Jiwon, Lee, Ki Woong, Lee, MyeongJae, Matlashov, Andrei, Parashar, Pallavi, Seong, Taehyeon, Shin, Yun Chang, Uchaikin, Sergey V., Youn, SungWoo, Semertzidis, Yannis K.
We report an extensive high-sensitivity search for axion dark matter above 1\,GHz at the Center for Axion and Precision Physics Research (CAPP). The cavity resonant search, exploiting the coupling between axions and photons, explored the frequency (m
Externí odkaz:
http://arxiv.org/abs/2402.12892
Autor:
Kim, Younggeun, Jeong, Junu, Youn, SungWoo, Bae, Sungjae, Lee, Kiwoong, van Loo, Arjan F., Nakamura, Yasunobu, Oh, Seonjeong, Seong, Taehyeon, Uchaikin, Sergey, Kim, Jihn E., Semertzidis, Yannis K.
The axion has emerged as the most attractive solution to two fundamental questions in modern physics related to the charge-parity invariance in strong interactions and the invisible matter component of our universe. Over the past decade, there have b
Externí odkaz:
http://arxiv.org/abs/2312.11003
Overcoming the issue of qubit-frequency fluctuations is essential to realize stable and practical quantum computing with solid-state qubits. Static ZZ interaction, which causes a frequency shift of a qubit depending on the state of neighboring qubits
Externí odkaz:
http://arxiv.org/abs/2309.13927
Photon-noise-tolerant dispersive readout of a superconducting qubit using a nonlinear Purcell filter
Autor:
Sunada, Yoshiki, Yuki, Kenshi, Wang, Zhiling, Miyamura, Takeaki, Ilves, Jesper, Matsuura, Kohei, Spring, Peter A., Tamate, Shuhei, Kono, Shingo, Nakamura, Yasunobu
Publikováno v:
PRX Quantum 5, 010307 (2024)
Residual noise photons in a readout resonator become a major source of dephasing for a superconducting qubit when the resonator is optimized for a fast, high-fidelity dispersive readout. Here, we propose and demonstrate a nonlinear Purcell filter tha
Externí odkaz:
http://arxiv.org/abs/2309.04315
Autor:
Singh, Akhil Pratap, Mitarai, Kosuke, Suzuki, Yasunari, Heya, Kentaro, Tabuchi, Yutaka, Fujii, Keisuke, Nakamura, Yasunobu
Publikováno v:
Phys. Rev. Research 6, 013235 (2024)
We experimentally demonstrate a virtual two-qubit gate and characterize it using quantum process tomography~(QPT). The virtual two-qubit gate decomposes an actual two-qubit gate into single-qubit unitary gates and projection gates in quantum circuits
Externí odkaz:
http://arxiv.org/abs/2307.03232
Autor:
Kutlu, Çağlar, Ahn, Saebyeok, Uchaikin, Sergey V., Lee, Soohyung, van Loo, Arjan F., Nakamura, Yasunobu, Oh, Seonjeong, Semertzidis, Yannis K.
Many experiments operating at millikelvin temperatures with signal frequencies in the microwave regime are beginning to incorporate Josephson Parametric Amplifiers (JPA) as their first amplification stage. While there are implementations for a wideba
Externí odkaz:
http://arxiv.org/abs/2305.08866
Autor:
Ivanov, Boris I., Kim, Jinmyeong, Kutlu, Çağlar, van Loo, Arjan F., Nakamura, Yasunobu, Uchaikin, Sergey V., Oh, Seonjeong, Gkika, Violeta, Matlashov, Andrei, Chung, Woohyun, Semertzidis, Yannis K.
The axion search experiments based on haloscopes at the Center for Axion and Precision Physics Research (CAPP) of the Institute for Basic Science (IBS) in South Korea are performed in the frequency range from 1 GHz to 6 GHz. In order to perform the e
Externí odkaz:
http://arxiv.org/abs/2304.13367