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arXiv:1708.04955q-fin.GN

qBitcoin: A Peer-to-Peer Quantum Cash System

Kazuki Ikeda

Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.

Abstract

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.

arXiv comments
11 pages, 2 figures
Journal reference
Proceedings of the 2018 Computing Conference
DOI
doi:10.1007/978-3-030-01174-1_58
Subjects
q-fin.GNGeneral Finance cs.CRCryptography and Security quant-phQuantum Physics

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Linked by 1 identifiable commenter in 1 comment across 1 thread, from Oct 2017 to Oct 2017. Found in 2 HN submissions from Aug 2017 to Aug 2017. Open submission discussions.

Comments linking this paper, per year.

Discussed in comments1 thread

  1. IMF Head Foresees the End of Banking and the Triumph of Cryptocurrency 1 comment

    • The most ambitious one imho is qbitcoin[1]. It's based on quantum teleportation and quantum digital signatures. That gives it quite a low Technology Readiness Level[2], but hey, we see articles about actual implementation of quantum teleportation everyday, so who knows? 1.…

      grondiluView on HNParent context

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