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Paper Abstract and Keywords
Presentation 2020-12-10 16:50
Classical hardness of quantum random circuit sampling with larger error
Yasuhiro Kondo, Ryuhei Mori (Tokyo Tech)
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, Google's research team has succeeded in sampling the output of a randomly given 53-qubit quantum circuit 1 million times in 200 seconds.
This sampling problem is called quantum random circuit sampling (RCS),
and it is important to prove the hardness of RCS for classical computers .
Movassagh showed that RCS within $ 2^{-Omega (m^2)} $ additive error, is hard on classical computers, assuming that the polynomial hierarchy does not collapse
where $m$ is the number of gates in the quantum circuit.
In this study, we improve Movassagh's proof, and show the classical hardness of RCS within $ 2^{-Omega (mlog m)} $ additive error.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum supremacy / Quantum random circuit / Quantum computation / / / / /  
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Conference Information
Committee QIT  
Conference Date 2020-12-10 - 2020-12-11 
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 2020-12-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Classical hardness of quantum random circuit sampling with larger error 
Sub Title (in English)  
Keyword(1) Quantum supremacy  
Keyword(2) Quantum random circuit  
Keyword(3) Quantum computation  
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1st Author's Name Yasuhiro Kondo  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Ryuhei Mori  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2020-12-10 16:50:00 
Presentation Time 20 minutes 
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