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Paper Abstract and Keywords
Presentation 2022-12-08 10:45
Generating quantum entanglement between macroscopic objects with continuous measurement and feedback control
Daisuke Miki (Kyushu Univ.), Nobuyuki Matsumoto (Gakushuin Univ.), Akira Matsumura, Tomoya Shichijo, Yuuki Sugiyama, Kazuhiro Yamamoto (Kyushu Univ.), Naoki Yamamoto (Keio Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The cavity optomechanics using an mg-scale mechanical mirror has the potential to realize the quantum states of macroscopic objects. In this system, we can continuously measure the mirror's position through the output photon measurement, which leads to the squeezing of the mirror. This study investigates the feasibility of generating quantum entanglement between two mechanical mirrors using a Fabry-Perot-Michelson interferometer under continuous measurement. We demonstrate that entanglement between the mechanical mirrors is generated when the states of the common mode and differential mode are asymmetrically squeezed with high purity. Our results also show that quantum entanglement between $7~text{mg}$ mirrors is achievable in the short term.
Keyword (in Japanese) (See Japanese page) 
(in English) quantum entanglement / optomechanics / quantum control / / / / /  
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Conference Information
Committee QIT  
Conference Date 2022-12-08 - 2022-12-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Keio Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2022-12-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generating quantum entanglement between macroscopic objects with continuous measurement and feedback control 
Sub Title (in English)  
Keyword(1) quantum entanglement  
Keyword(2) optomechanics  
Keyword(3) quantum control  
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1st Author's Name Daisuke Miki  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Nobuyuki Matsumoto  
2nd Author's Affiliation Gakushuin University (Gakushuin Univ.)
3rd Author's Name Akira Matsumura  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Tomoya Shichijo  
4th Author's Affiliation Kyushu University (Kyushu Univ.)
5th Author's Name Yuuki Sugiyama  
5th Author's Affiliation Kyushu University (Kyushu Univ.)
6th Author's Name Kazuhiro Yamamoto  
6th Author's Affiliation Kyushu University (Kyushu Univ.)
7th Author's Name Naoki Yamamoto  
7th Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2022-12-08 10:45:00 
Presentation Time 15 minutes 
Registration for QIT 
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