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Paper Abstract and Keywords
Presentation 2019-11-19 15:30
Rational sumcheck protocols for classically delegating quantum computing to a quantum server
Yuki Takeuchi (NTT), Tomoyuki Morimae (Kyoto Univ.), Seiichiro Tani (NTT)
Abstract (in Japanese) (See Japanese page) 
(in English) Delegated quantum computing enables a client with a weak computational power to delegate quantum computing to a remote quantum server in such a way that the integrity of the server is efficiently veri ed by the client. Recently, a new model of delegated quantum computing has been proposed, namely, rational delegated quantum computing. In this model, after the client interacts with the server, the client pays a reward to the server depending on the server's messages and the client's random bits. The rational server sends messages that maximize the expected value of the reward. In this talk, we propose novel one-round rational delegated quantum computing protocols by generalizing the classical rational sumcheck protocol. We also discuss the reward gap. Simply speaking, the reward gap is a minimum loss on the server's reward incurred by a server's behavior that makes the client accept an incorrect answer. Apart from these results, we show, under a certain condition, the equivalence between rational and ordinary delegated quantum computing protocols.
Keyword (in Japanese) (See Japanese page) 
(in English) quantum computing / rational sumcheck protocol / reward gap / / / / /  
Reference Info. IEICE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee QIT  
Conference Date 2019-11-18 - 2019-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Gakushuin University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2019-11-QIT 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Rational sumcheck protocols for classically delegating quantum computing to a quantum server 
Sub Title (in English)  
Keyword(1) quantum computing  
Keyword(2) rational sumcheck protocol  
Keyword(3) reward gap  
1st Author's Name Yuki Takeuchi  
1st Author's Affiliation Nippon Telegraph and Telephone (NTT)
2nd Author's Name Tomoyuki Morimae  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Seiichiro Tani  
3rd Author's Affiliation Nippon Telegraph and Telephone (NTT)
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Date Time 2019-11-19 15:30:00 
Presentation Time 20 
Registration for QIT 
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