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Paper Abstract and Keywords
Presentation 2021-05-24 13:30
[Poster Presentation] Exact WKB Analysis of Landau-Zener Grid Model
Takayuki Suzuki, Hiromichi Nakazato (Waseda Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The Landau-Zener grid model is known as a model in quantum dot systems and circuit QED systems. Since the model is described by a time-dependent Hamiltonian, it is difficult to analyze the dynamics of the system exactly. In this study, we use exact WKB analysis to analyze the dynamics approximately. As a result, it is found that non-adiabatic transitions can be regarded to occur at each anticrossing points when the anticrossing points are far apart. As an example of the result, we derive the condition for a maximizing the transition probability of a qubit in double quantum dot.
Keyword (in Japanese) (See Japanese page) 
(in English) Landau-Zener grid model / exact WKB analysis / double quantum dot / / / / /  
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Conference Information
Committee QIT  
Conference Date 2021-05-24 - 2021-05-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2021-05-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Exact WKB Analysis of Landau-Zener Grid Model 
Sub Title (in English)  
Keyword(1) Landau-Zener grid model  
Keyword(2) exact WKB analysis  
Keyword(3) double quantum dot  
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1st Author's Name Takayuki Suzuki  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Hiromichi Nakazato  
2nd Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2021-05-24 13:30:00 
Presentation Time 120 minutes 
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