Faculty Profiles - HAYASHI Masahito

Papers - HAYASHI Masahito

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Large deviation theory for non-regular location shift family Reviewed International coauthorship

Hayashi Masahito

ANNALS OF THE INSTITUTE OF STATISTICAL MATHEMATICS Vol. 63 ( 4 ) page： 689-716 2011.8

Weaker entanglement between two parties guarantees stronger entanglement with a third party Reviewed International coauthorship

Masahito Hayashi, Lin Chen

Physical Review A Vol. 84 ( 1 ) page： 012325 2011.7

Exponential Decreasing Rate of Leaked Information in Universal Random Privacy Amplification Reviewed International coauthorship

Hayashi Masahito

IEEE TRANSACTIONS ON INFORMATION THEORY Vol. 57 ( 6 ) page： 3989-4001 2011.6

Comparison between the Cramer-Rao and the mini-max approaches in quantum channel estimation Reviewed International coauthorship

Masahito Hayashi

Communications in Mathematical Physics Vol. 304 ( 3 ) page： 689-709 2011.6

Discrimination of the change point in a quantum setting Reviewed International coauthorship

Daiki Akimoto, Masahito Hayashi

Physical Review A Vol. 83 ( 5 ) page： 052328 2011.5

光子個数制約の下での位相推定 Reviewed International coauthorship

林正人

Progress in informatics ( 8 ) page： 81 - 87 2011.3

Publishing type：Research paper (scientific journal) Publisher：国立情報学研究所

位相推定問題についての多くの研究ではNoon 状態を入力状態として用いる方法が提案されている.理由はNoon 状態を入力状態とした場合,ある点でFisher 情報量が最大となるからである.しかし,Fisher 情報量が必ずしも達成可能な推定誤差を与えるとは限らない.本稿では,Mini-max 基準に加え,局所漸近Mini-max 基準を考え,これらの場合に,Fisher 情報量が達成可能な推定誤差を与えないことを示す.さらに,Noon 状態に代わり,漸近的に最適な入力状態を光子数に関する制約条件の下で与える.

Multicopy and stochastic transformation of multipartite pure states Reviewed International coauthorship

Lin Chen, Masahito Hayashi

Physical Review A Vol. 83 ( 2 ) page： 022331 2011.2

Dual universality of hash functions and its applications to quantum cryptography (ワイドバンドシステム・情報通信基礎サブソサイエティ合同研究会) Reviewed International coauthorship

鶴丸豊広, 林正人

電子情報通信学会技術研究報告. WBS, ワイドバンドシステム : IEICE technical report Vol. 110 ( 444 ) page： 295 - 302 2011.2

Publishing type：Research paper (scientific journal) Publisher：一般社団法人電子情報通信学会

In this paper, we introduce the concept of dual universality of hash functions and present its applications to various quantum and classical communication models including cryptography. We begin by establishing the one-to-one correspondence between a linear function family F and a code family C, and thereby defining ε-almost dual universal_2 hash functions, as a generalization of the conventional universal_2 hash functions. Then we give a security proof for the Bennett-Brassard 1984 protocol, where the Shor-Preskill-type argument is used, but nevertheless ε-almost dual universal_2 functions can be used for privacy amplification.

Dual universality of hash functions and its applications to quantum cryptography (情報理論・情報通信基礎サブソサイエティ合同研究会) Reviewed International coauthorship

鶴丸豊広, 林正人

電子情報通信学会技術研究報告. IT, 情報理論 Vol. 110 ( 442 ) page： 295 - 302 2011.2

Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人電子情報通信学会

Universally Attainable Error and Information Exponents, and Equivocation Rate for the Broadcast Channels with Confidential Messages Reviewed International coauthorship

Forty-Ninth Annual Allerton Conference page： . 2011

General theory for integer-type algorithm for higher order differential equations Reviewed International coauthorship

Fuminori Sakaguchi, Masahito Hayashi,

Numerical Functional Analysis and Optimization Vol. 32 ( 5 ) page： 541-582 2011

Secure Multiplex Coding with a Common Message Reviewed International coauthorship

Matsumoto Ryutaroh, Hayashi Masahito

2011 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) page： . 2011

PRACTICAL IMPLEMENTATION AND ERROR BOUND OF INTEGER-TYPE ALGORITHM FOR HIGHER-ORDER DIFFERENTIAL EQUATIONS Reviewed International coauthorship

Sakaguchi Fuminori, Hayashi Masahito

NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION Vol. 32 ( 12 ) page： 1316-1364 2011

Phase estimation with photon number constraint Reviewed International coauthorship

Masahito HAYASHI

Progress of Informatics ( 8 ) page： 81-87 2011

Secure Multiplex Network Coding Reviewed International coauthorship

Matsumoto, Ryutaroh, Hayashi, Masahito,

2011 International Symposium on Network Coding (NetCod) 2011

Weaker entanglement between two parties guarantees stronger entanglement with a third party Reviewed International coauthorship

林正人

Physical Review A Vol. Vol, 84 page： 12325 2011

Weaker entanglement between two parties guarantees stronger entanglement with a third party Reviewed International coauthorship

林正人

Physical Beview A Vol. 84 page： 12325 2011

Comparison between the Cramer-Rao and the mini-max approaches in quantum channel estimation Reviewed International coauthorship

林正人

Communications in Mathematical Physics Vol. 304 page： 689 - 709 2011

Practical Implementation and Error Bound of Integer-Type Algorithm for Higher-Order Differential Equations Reviewed International coauthorship

林正人

Numerical Functional Analysis and Optimization Vol. 32 page： 1316 - 1364 2011

Phase estimation with photon number constraint," Progress of Informatics Reviewed International coauthorship

林正人

Progress of Informatics Vol. 8 page： 81 - 87 2011

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Papers - HAYASHI Masahito