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Paper Abstract and Keywords
Presentation 2018-11-27 10:30
Observation of rotational Brownian motion of single electron spins
Masazumi Fujiwara (Osaka City Univ.), Yutaka Shikano (Keio Univ.), Ryuta Tsukahara, Shinichi Shikata, Hideki Hashimoto (KGU)
Abstract (in Japanese) (See Japanese page) 
(in English) Capturing the fast rotational motion of single nanoparticles has been hindered owing to the difficulty of acquiring directional information under the optical diffraction limit. Here, we report the linewidth broadening of the electron spin resonance of single nitrogen vacancy (NV) centers that matches the rotational diffusion constant of the host nanodiamonds. When nanodiamonds are gradually detached from the substrates that they were fixed to, their optically detected spin resonance peaks are broadened by 1.8 MHz, which corresponds to the rotational diffusion constant of nanoparticles with a diameter of 11.4 nm from the Einstein–Smoluchowski relation.
Keyword (in Japanese) (See Japanese page) 
(in English) Brownian motion / Geometric phase / Quantum measurement / / / / /  
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Conference Information
Committee QIT  
Conference Date 2018-11-26 - 2018-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Tokyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2018-11-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Observation of rotational Brownian motion of single electron spins 
Sub Title (in English)  
Keyword(1) Brownian motion  
Keyword(2) Geometric phase  
Keyword(3) Quantum measurement  
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1st Author's Name Masazumi Fujiwara  
1st Author's Affiliation Osaka City University (Osaka City Univ.)
2nd Author's Name Yutaka Shikano  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Ryuta Tsukahara  
3rd Author's Affiliation Kwansei Gakuin University (KGU)
4th Author's Name Shinichi Shikata  
4th Author's Affiliation Kwansei Gakuin University (KGU)
5th Author's Name Hideki Hashimoto  
5th Author's Affiliation Kwansei Gakuin University (KGU)
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Speaker Author-1 
Date Time 2018-11-27 10:30:00 
Presentation Time 20 minutes 
Registration for QIT 
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