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Paper Abstract and Keywords
Presentation 2013-11-18 00:00
[Poster Presentation] Improving precision measurement with the sequential weak measurement
Tatsuya Morita, Jaeha Lee (Univ. of Tokyo), Izumi Tsutsui (KEK)
Abstract (in Japanese) (See Japanese page) 
(in English) Weak measurement has emerged as a method to amplify the signal from quantum systems for ultrasensitive measurements. Using the weak measurement for detecting infi nitesimally small interactions, we can detect these interactions but have the limit of accuracy. We proposed a new method of precision measurement based on the sequential weak measurement instead single weak measurement. We here analyze the measurement errors of the method for detecting small interactions. We found that the limit of accuracy for the detection gets improved with the sequential weak measurement. We also show that weak value can be more ampli fied by the sequential weak interactions.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum measurement / Weak value / Weak measuremennt / / / / /  
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Conference Information
Committee QIT  
Conference Date 2013-11-18 - 2013-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Waseda Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2013-11-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving precision measurement with the sequential weak measurement 
Sub Title (in English)  
Keyword(1) Quantum measurement  
Keyword(2) Weak value  
Keyword(3) Weak measuremennt  
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1st Author's Name Tatsuya Morita  
1st Author's Affiliation University of Tokyo (Univ. of Tokyo)
2nd Author's Name Jaeha Lee  
2nd Author's Affiliation University of Tokyo (Univ. of Tokyo)
3rd Author's Name Izumi Tsutsui  
3rd Author's Affiliation High Energy Accelerator Research Organization (KEK)
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Date Time 2013-11-18 00:00:00 
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