Measurement for quantum shot noise in a quantum point contact at low temperatures

Masayuki Hashisaka; Yoshiaki Yamauchi; Shuji Nakamura; Shinya Kasai; Kensuke Kobayashi; Teruo Ono

論文・著書情報

タイトル

和文:
英文:	Measurement for quantum shot noise in a quantum point contact at low temperatures

著者

和文:	橋坂昌幸, Yoshiaki Yamauchi, Shuji Nakamura, Shinya Kasai, Kensuke Kobayashi, Teruo Ono.
英文:	Masayuki Hashisaka, Yoshiaki Yamauchi, Shuji Nakamura, Shinya Kasai, Kensuke Kobayashi, Teruo Ono.

言語

English

掲載誌/書名

和文:
英文:	Journal of Physics: Conference Series

巻, 号, ページ

109 012013

出版年月

2008年11月

出版者

和文:
英文:

会議名称

和文:
英文:	International Symposium on Advanced Nanodevices and Nanotechnology

開催地

和文:
英文:	Hawaii, USA

アブストラクト

We report an experimental development for the high-frequency shot noise measurement system in the 3He-4He dilution refrigerator. The target frequency of the measurement was set to a few MHz with the cross correlation scheme adopted for high accuracy. The system was calibrated by measuring Johnson-Nyquist noise of the quantum point contact (QPC). We prove that our system has enough accuracy for the quantitative evaluation of the quantum shot noise.

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