セキュア量子情報通信の基礎研究

安全量子信息通信基础研究

• 批准号: 15F15015
• 负责人: 小澤 正直
• 金额: $ 1.47万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2015
• 资助国家: 日本
• 起止时间: 2015-04-24 至 2017-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15F15015/
• 关键词: Quantum Communication; Quantum Cryptography; Entanglement; Quantum Noise; Quantum Dialogue; Key Agreement; Multiparty Communication; Entangled States; Hierarchical Commun.; Quantum Circuit; Entanglement Concent.

The main study of the research plan was to develop the new protocols of secure quantum communication, which have practical significance.1. We introduced a notion of asymmetric quantum dialogue (AQD) protocol, which provides the different amount of communication powers to Alice and Bob. The proposed scheme, offers an architecture, where the entangled state and the encoding scheme to be shared between Alice and Bob depends on the amount of classical information they want to exchange with each other.2. Semi-quantum protocols are proposed for key agreement, controlled deterministic securecommunication and dialogue, with optimal/minimal nonclassical resources, and with their potential applications. Specifically, these schemes show less quantum resources are required than the existing fully quantum protocols because in semi-quantum cryptography, one of the users is classical. This study has established that almost every secure communication and computation tasks that can be performed using fully quantum protocols can also be performed in semi-quantum manner.3. A notion of quantum conference (QC) is introduced. QC is defined as a multiparty secure communication task that allows each party to communicate their messages simultaneously to all other parties in a secure manner using quantum resources. It is shown that the proposed protocols can be realized using a large number of entangled states and group of operators.

本研究计划的主要研究内容是开发安全量子通信新协议，具有实际意义。 1．我们引入了非对称量子对话（AQD）协议的概念，它为 Alice 和 Bob 提供了不同数量的通信能力。所提出的方案提供了一种架构，其中爱丽丝和鲍勃之间共享的纠缠态和编码方案取决于他们想要彼此交换的经典信息量。 2．半量子协议被提出用于密钥协商、受控确定性安全通信和对话，具有最佳/最小非经典资源及其潜在应用。具体来说，这些方案表明比现有的全量子协议需要更少的量子资源，因为在半量子密码学中，其中一个用户是经典的。这项研究表明，几乎所有可以使用全量子协议执行的安全通信和计算任务也可以以半量子方式执行。 3．引入了量子会议（QC）的概念。 QC 被定义为多方安全通信任务，允许每一方使用量子资源以安全的方式同时向所有其他方传达其消息。结果表明，所提出的协议可以使用大量纠缠态和算子组来实现。

项目成果

Jaypee Institute of Inf. Tech./Bose Institute/Indian Institute of Sci. Kolkata(インド)

Jaypee 信息技术研究所/Bose 研究所/印度加尔各答科学研究所（印度）

Secure quantum communication with orthogonal states

• DOI: 10.1142/s0219749916400219
• 发表时间: 2014-07
• 期刊: International Journal of Quantum Information
• 影响因子: 1.2
• 作者: Chitra Shukla;Chitra Shukla;A. Banerjee;A. Pathak;R. Srikanth

Quantum Communication and Cryptography

量子通信和密码学

Protocols of quantum key agreement solely using Bell states and Bell measurement

• DOI: 10.1007/s11128-014-0784-0
• 发表时间: 2014-07
• 期刊: Quantum Information Processing
• 影响因子: 2.5
• 作者: Chitra Shukla;Nasir Alam;Anirban Pathak

Hierarchical quantum communication over noisy channels

噪声信道上的分层量子通信

• 发表时间: 2016
• 作者: Chitra Shukla;Kishore Thapliyal and Anirban Pathak
• 通讯作者: Kishore Thapliyal and Anirban Pathak