The Q-Day Dilemma and the Quantum Supremacy/Advantage Conjecture
crossref(2022)
摘要
Abstract When Shakespeare averred, “a rose by any other name would smell as sweet”, we precisely knew the attributes associated with this thing called “ROSE.” But do we really know what Quantum supremacy1 or Quantum advantage2 exactly entails in Quantum Computing (QC) space, except that latter appears more politically correct than the former? How do we achieve the supremacy or advantage unless we precisely know what threshold needs to be reached to qualify? Can that threshold be totally oblivious to ethics and humane interests? What good a nuclear chain reaction is, if it cannot be controlled to serve humanity? In the same breadth definition of quantum advantage cannot be just limited to achieving algorithmic superiority over legacy computing systems, particularly when a section of the experts attribute catastrophic threat3 that unrestrained QC may cause by collapsing the current cryptographic infrastructure4 resulting in amplified existential risk to humanity.5 These predictions are relevant only if QCs become commercially viable and deployable in the service of humanity. No technology can be a one-way ticket to catastrophe, and neither can the definition of superiority of that technology be. If at all there are catastrophic risks, QC can never enter public domain as a minimum viable product (MVP) unless there are safeguards in place. So obviously those safeguards should become an integral part of the definition of its superiority over the conventional computers and a standard to be met to pass the MVP threshold. NIST (National Institute of Standards & Technology) is pursuing the standardization of Post Quantum Cryptography (PQC) as that safeguard,6 but with 80th of the 82 candidate PQCs recently failing7 and companies already offering QC as a service, there is an urgent need for an alternate strategy. Our research proposes a novel encryption agnostic approach8 to safeguard QC,9 and articulates a comprehensive definition of an MVP that can potentially set a gold standard for defining commercially viable quantum advantage over the traditional computing.
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