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Paper Abstract and Keywords
Presentation 2014-11-18 15:30
Implementation of impedance-matched Lambda system in circuit QED (experiment)
Kunihiro Inomata (RIKEN), Kazuki Koshino (TMDU), Zhirong Lin, Jaw-Shen Tsai (RIKEN), Yasunobu Nakamura (U-Tokyo), Tsuyoshi Yamamoto (NEC)
Abstract (in Japanese) (See Japanese page) 
(in English) By driving the dispersively coupled qubit-resonator system, we realize the impedance-matched $Lambda$ system that has two identical radiative decay rates from the top level and interacts with a semi-infinite waveguide. It has been predicted that a photon input from the waveguide deterministically induces a Raman transition in the system and switches its electronic state. We confirm this through microwave response to a continuous probe field, observing near-perfect extinction of the reflection and highly efficient frequency down-conversion. We present the experimental results of a microwave-photon detection by applying the deterministic switching of the $Lambda$ system and a non-destructive readout of a superconducting qubit.
Keyword (in Japanese) (See Japanese page) 
(in English) Impedance-matched $Lambda$ system / superconducting qubit / frequency down conversion / microwave photon / / / /  
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Conference Information
Committee QIT  
Conference Date 2014-11-17 - 2014-11-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2014-11-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Implementation of impedance-matched Lambda system in circuit QED (experiment) 
Sub Title (in English)  
Keyword(1) Impedance-matched $Lambda$ system  
Keyword(2) superconducting qubit  
Keyword(3) frequency down conversion  
Keyword(4) microwave photon  
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1st Author's Name Kunihiro Inomata  
1st Author's Affiliation RIKEN (RIKEN)
2nd Author's Name Kazuki Koshino  
2nd Author's Affiliation TMDU (TMDU)
3rd Author's Name Zhirong Lin  
3rd Author's Affiliation RIKEN (RIKEN)
4th Author's Name Jaw-Shen Tsai  
4th Author's Affiliation RIKEN (RIKEN)
5th Author's Name Yasunobu Nakamura  
5th Author's Affiliation The University of Tokyo (U-Tokyo)
6th Author's Name Tsuyoshi Yamamoto  
6th Author's Affiliation NEC (NEC)
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Speaker Author-1 
Date Time 2014-11-18 15:30:00 
Presentation Time 20 minutes 
Registration for QIT 
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