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Paper Abstract and Keywords
Presentation 2016-11-25 13:50
Generation of a generalized cat state at finite temperature
Mamiko Tatsuta, Akira Shimizu (Univ. of Tokyo)
Abstract (in Japanese) (See Japanese page) 
(in English) Superpositions of macroscopically distinct states (which we call “generalized cat states”), such as Schrödinger's cat state, have not only been of interest for a long time to many people, but also been longed for their realization in the field of quantum information as a resource. We have found that in a quantum spin system at finite temperature, “generalized cat states” can be generated through the measurement of the z component of magnetization of an equilibrium state in a magnetic field parallel to the x-axis. This comes from the cooperative effect of non-commutativity between Hamiltonian and magnetization and a huge number of macroscopic states that is determined by the number of possible combinations.
Keyword (in Japanese) (See Japanese page) 
(in English) cat state / measurement / / / / / /  
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Conference Information
Committee QIT  
Conference Date 2016-11-24 - 2016-11-25 
Place (in Japanese) (See Japanese page) 
Place (in English) KEK Kobayashi-hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2016-11-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generation of a generalized cat state at finite temperature 
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Keyword(1) cat state  
Keyword(2) measurement  
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1st Author's Name Mamiko Tatsuta  
1st Author's Affiliation University of Tokyo (Univ. of Tokyo)
2nd Author's Name Akira Shimizu  
2nd Author's Affiliation University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time 2016-11-25 13:50:00 
Presentation Time 20 minutes 
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