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Authenticated teleportation and verification in a noisy network

Abstract : Authenticated teleportation aims to certify the transmission of a quantum state through teleportation, even in the presence of an adversary. This scenario can be pictured in terms of an untrusted source distributing a Bell state between two parties who wish to verify it using some simple tests. We propose a protocol that achieves this goal in a practical way, and analyse its performance and security when the parties have noisy measurement devices. Further, we model a realistic experimental scenario where the state is subject to noise and dephasing. We finally apply our analysis to the verification of graph states with noisy measurement devices.
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Contributor : Damian Markham <>
Submitted on : Wednesday, November 27, 2019 - 11:13:53 PM
Last modification on : Tuesday, March 23, 2021 - 9:28:03 AM

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Anupama Unnikrishnan, Damian Markham. Authenticated teleportation and verification in a noisy network. Physical Review A, American Physical Society 2020, 102 (4), pp.042401. ⟨10.1103/PhysRevA.102.042401⟩. ⟨hal-02383720⟩



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