| 講演抄録/キーワード |
| 講演名 |
2013-06-24 15:45
Stronger Methods of Making Quantum Interactive Proofs Perfectly Complete Hirotada Kobayashi(NII)・Francois Le Gall(Univ. of Tokyo)・○Harumichi Nishimura(Nagoya Univ.) COMP2013-24 |
| 抄録 |
(和) |
This paper presents stronger methods of achieving perfect completeness in quantum interactive proofs. First, it is proved that any problem in $mathrm{QMA}$ has a two-message quantum interactive proof system of perfect completeness with constant soundness error, where the verifier has only to send a constant number of halves of EPR pairs. This in particular implies that the class $mathrm{QMA}$ is necessarily included by the class $mathrm{QIP}_1(2)$ of problems having two-message quantum interactive proofs of perfect completeness, which gives the first nontrivial upper bound for $mathrm{QMA}$ in terms of quantum interactive proofs. It is also proved that any problem having an $m$-message quantum interactive proof system necessarily has an $(m+1)$-message quantum interactive proof system of perfect completeness. This improves the previous result due to Kitaev and Watrous, where the resulting system of perfect completeness requires $m+2$ messages if not using the parallelization result. |
| (英) |
This paper presents stronger methods of achieving perfect completeness in quantum interactive proofs. First, it is proved that any problem in $mathrm{QMA}$ has a two-message quantum interactive proof system of perfect completeness with constant soundness error, where the verifier has only to send a constant number of halves of EPR pairs. This in particular implies that the class $mathrm{QMA}$ is necessarily included by the class $mathrm{QIP}_1(2)$ of problems having two-message quantum interactive proofs of perfect completeness, which gives the first nontrivial upper bound for $mathrm{QMA}$ in terms of quantum interactive proofs. It is also proved that any problem having an $m$-message quantum interactive proof system necessarily has an $(m+1)$-message quantum interactive proof system of perfect completeness. This improves the previous result due to Kitaev and Watrous, where the resulting system of perfect completeness requires $m+2$ messages if not using the parallelization result. |
| キーワード |
(和) |
量子計算 / 対話型証明系 / / / / / / |
| (英) |
quantum computing / interactive proof systems / / / / / / |
| 文献情報 |
信学技報, vol. 113, no. 108, COMP2013-24, pp. 31-38, 2013年6月. |
| 資料番号 |
COMP2013-24 |
| 発行日 |
2013-06-17 (COMP) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
COMP2013-24 |