英文标题：
《qBitcoin: A Peer-to-Peer Quantum Cash System》
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作者：
Kazuki Ikeda
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最新提交年份：
2017
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英文摘要：
  A decentralized online quantum cash system, called qBitcoin, is given. We design the system which has great benefits of quantization in the following sense. Firstly, quantum teleportation technology is used for coin transaction, which prevents from the owner of the coin keeping the original coin data even after sending the coin to another. This was a main problem in a classical circuit and a blockchain was introduced to solve this issue. In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory. Making a block is time consuming and the system of qBitcoin is based on a quantum chain, instead of blocks. Therefore a payment can be completed much faster than Bitcoin. Moreover we employ quantum digital signature so that it naturally inherits properties of peer-to-peer (P2P) cash system as originally proposed in Bitcoin.
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中文摘要：
给出了一个分散的在线量子现金系统，称为qBitcoin。我们设计的系统在以下意义上具有很大的量化优势。首先，量子隐形传态技术被用于硬币交易，这防止了硬币所有者即使在将硬币发送给另一个硬币后仍保留原始硬币数据。这是经典电路中的一个主要问题，引入区块链来解决这个问题。在qBitcoin中，双重消费问题从未发生，其安全性通过量子信息理论从理论上得到保证。制作块非常耗时，qBitcoin系统基于量子链，而不是块。因此，支付可以比比特币更快地完成。此外，我们采用量子数字签名，因此它自然继承了比特币中最初提出的对等（P2P）现金系统的属性。
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分类信息：

一级分类：Quantitative Finance        数量金融学
二级分类：General Finance        一般财务
分类描述：Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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一级分类：Computer Science        计算机科学
二级分类：Cryptography and Security        密码学与安全
分类描述：Covers all areas of cryptography and security including authentication, public key cryptosytems, proof-carrying code, etc. Roughly includes material in ACM Subject Classes D.4.6 and E.3.
涵盖密码学和安全的所有领域，包括认证、公钥密码系统、携带证明的代码等。大致包括ACM主题课程D.4.6和E.3中的材料。
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一级分类：Physics        物理学
二级分类：Quantum Physics        量子物理学
分类描述：Description coming soon
描述即将到来
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