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https://doi.org/10.1038/s41534-021-00435-w
DC Field | Value | |
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dc.title | Probabilistic one-time programs using quantum entanglement | |
dc.contributor.author | Roehsner, Marie-Christine | |
dc.contributor.author | Kettlewell, Joshua A. | |
dc.contributor.author | Fitzsimons, Joseph | |
dc.contributor.author | Walther, Philip | |
dc.date.accessioned | 2022-10-11T07:47:34Z | |
dc.date.available | 2022-10-11T07:47:34Z | |
dc.date.issued | 2021-06-15 | |
dc.identifier.citation | Roehsner, Marie-Christine, Kettlewell, Joshua A., Fitzsimons, Joseph, Walther, Philip (2021-06-15). Probabilistic one-time programs using quantum entanglement. npj Quantum Information 7 (1) : 98. ScholarBank@NUS Repository. https://doi.org/10.1038/s41534-021-00435-w | |
dc.identifier.issn | 2056-6387 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/231934 | |
dc.description.abstract | Quantum technology allows for unparalleled levels of data and software protection. Probabilistic one-time programs harness these capabilities for quantum-assisted classical computations by encoding classical software in small quantum states resulting in computer programs that can be used only once. Such self-destructing one-time programs facilitate a variety of applications reaching from software distribution to one-time delegation of signature authority. Whereas previous experiments demonstrated the feasibility of such schemes, the practical applications were limited. Here we present an improved protocol for one-time programs that resolves major drawbacks of previous schemes, by employing entangled qubit pairs. This results in four orders of magnitude higher count rates and the ability to execute a program long after the quantum information exchange has taken place. We implement a one-time delegation of signature authority over an underground fiber link between university buildings in downtown Vienna, emphasizing the compatibility of our scheme with prepare-and-measure quantum internet networks. © 2021, The Author(s). | |
dc.publisher | Nature Research | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Scopus OA2021 | |
dc.type | Article | |
dc.contributor.department | CENTRE FOR QUANTUM TECHNOLOGIES | |
dc.description.doi | 10.1038/s41534-021-00435-w | |
dc.description.sourcetitle | npj Quantum Information | |
dc.description.volume | 7 | |
dc.description.issue | 1 | |
dc.description.page | 98 | |
Appears in Collections: | Staff Publications Elements |
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