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Paper Abstract and Keywords
Presentation 2015-11-24 15:10
[Tutorial Lecture] Hybrid quantum systems based on collective excitations in solids
Yasunobu Nakamura (Univ. of Tokyo)
Abstract (in Japanese) (See Japanese page) 
(in English) Our research is aiming at coherent control of collective excitations in solids and its application to quantum information processing. Good examples are superconducting quantum bits, which are realized in super-conducting circuits and used in demonstrations of quantum gates and as a tool for quantum optical experiments in the microwave domain. Here, we apply the technology to control collective spin excitations in a ferromagnet. We demonstrate coherent control of a single magnon in a sphere of yttrium iron garnet containing nearly 10^19 of electron spins [1-3]. We further study an interaction between magnons and light at the optical communication wavelength [4]. Additionally, we introduce our activity towards quantum control of phonons in a vibration mode of a nanomechanical device.
Keyword (in Japanese) (See Japanese page) 
(in English) hybrid quantum system / collective excitation mode / superconducting qubit / ferromagnet / magnon / nanomechanics / phonon /  
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Conference Information
Committee QIT  
Conference Date 2015-11-24 - 2015-11-25 
Place (in Japanese) (See Japanese page) 
Place (in English) NTT Atsugi R&D center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2015-11-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Hybrid quantum systems based on collective excitations in solids 
Sub Title (in English)  
Keyword(1) hybrid quantum system  
Keyword(2) collective excitation mode  
Keyword(3) superconducting qubit  
Keyword(4) ferromagnet  
Keyword(5) magnon  
Keyword(6) nanomechanics  
Keyword(7) phonon  
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1st Author's Name Yasunobu Nakamura  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time 2015-11-24 15:10:00 
Presentation Time 50 minutes 
Registration for QIT 
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