Presentation 2007-10-17
Development of microwave dc-SQUID for readout of quantum-bit
MIYAZAKI TOSHIYUKI, T. YAMAMOTO, Y. NAKAMURA, S. YOROZU, M. HIDAKA, J. S. TSAI,
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Abstract(in English) A microwave preamplifier which operates at very cold temperature, very low power consumption and very low noise is ideal for the readout of superconducting quantum bits. To satisfy these requirements, we develop dc-SQUID microwave preamplifiers. Target signal frequency of the dc-SQUID amplifier is 10 GHz and the requirements are power gain more than 10 dB and a noise level less than few times of the quantum limit. In this paper, we report the design and the evaluation of the fabricated amplifiers.
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Keyword(in English) quantum bit / dc-SQUID / microwave preamplifier / low power consumption
Paper # SCE2007-19
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Committee SCE
Conference Date 2007/10/10(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Development of microwave dc-SQUID for readout of quantum-bit
Sub Title (in English)
Keyword(1) quantum bit
Keyword(2) dc-SQUID
Keyword(3) microwave preamplifier
Keyword(4) low power consumption
1st Author's Name MIYAZAKI TOSHIYUKI
1st Author's Affiliation Japan Science and Technology Agency()
2nd Author's Name T. YAMAMOTO
2nd Author's Affiliation Japan Science and Technology Agency:Nano Electronics Lab., NEC Corp.:Frontier Research System, RIKEN
3rd Author's Name Y. NAKAMURA
3rd Author's Affiliation Japan Science and Technology Agency:Nano Electronics Lab., NEC Corp.:Frontier Research System, RIKEN
4th Author's Name S. YOROZU
4th Author's Affiliation Japan Science and Technology Agency:Nano Electronics Lab., NEC Corp.
5th Author's Name M. HIDAKA
5th Author's Affiliation Japan Science and Technology Agency:International Superconductivity Technology Center
6th Author's Name J. S. TSAI
6th Author's Affiliation Japan Science and Technology Agency:Nano Electronics Lab., NEC Corp.:Frontier Research System, RIKEN
Date 2007-10-17
Paper # SCE2007-19
Volume (vol) vol.107
Number (no) 259
Page pp.pp.-
#Pages 5
Date of Issue