Towards experimental demonstration of quantum position verification using true single photons
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The geographical position can be a good credential for authentication of a party, this is the basis of position-based cryptography - but classically this cannot be done securely without physical exchange of a private key. However, recently, it has been shown that by combining quantum mechanics with the speed of light limit of special relativity, this might be possible: quantum position verification. Here we demonstrate experimentally a protocol that uses two-photon Hong-Ou-Mandel interference at a beamsplitter, which, in combination with two additional beam splitters and 4 detectors is rendering the protocol resilient to loss. With this we are able to show first results towards an experimental demonstration of quantum position verification.
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Forward citations
Cited by 2 Pith papers
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Arbitrarily Loss-Tolerant Quantum Position Verification in a Single Execution
A no-signalling-based lifting of commitment techniques yields the first single-shot loss-tolerant QPV protocol with exponential security decay in the commitment threshold k and 3.7% noise robustness.
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Resource Management in Heterogeneous Quantum Repeater Networks
Proposes a heterogeneous quantum repeater network architecture using recursive designs and RuleSets with a new bridging building block, but states that full-scale resource trade-off analysis remains future work.
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