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Quantum Blockchain Using Entanglement in Time

School of Mathematics and Statistics, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
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Quantum Rep. 2019, 1(1), 3-11; https://doi.org/10.3390/quantum1010002
Received: 26 February 2019 / Revised: 11 April 2019 / Accepted: 12 April 2019 / Published: 17 April 2019
We propose a conceptual design for a quantum blockchain. Our method involves encoding the blockchain into a temporal GHZ (Greenberger–Horne–Zeilinger) state of photons that do not simultaneously coexist. It is shown that the entanglement in time, as opposed to an entanglement in space, provides the crucial quantum advantage. All the subcomponents of this system have already been shown to be experimentally realized. Furthermore, our encoding procedure can be interpreted as nonclassically influencing the past. View Full-Text
Keywords: entanglement in time; entanglement in space; blockchain; quantum blockchain entanglement in time; entanglement in space; blockchain; quantum blockchain
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MDPI and ACS Style

Rajan, D.; Visser, M. Quantum Blockchain Using Entanglement in Time. Quantum Rep. 2019, 1, 3-11. https://doi.org/10.3390/quantum1010002

AMA Style

Rajan D, Visser M. Quantum Blockchain Using Entanglement in Time. Quantum Reports. 2019; 1(1):3-11. https://doi.org/10.3390/quantum1010002

Chicago/Turabian Style

Rajan, Del, and Matt Visser. 2019. "Quantum Blockchain Using Entanglement in Time" Quantum Reports 1, no. 1: 3-11. https://doi.org/10.3390/quantum1010002

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