Fast and simple qubit-based synchronization for quantum key distribution

Luca Calderaro; Andrea Stanco; Costantino Agnesi; Marco Avesani; Daniele Dequal; Paolo Villoresi; Giuseppe Vallone

doi:10.1103/PhysRevApplied.13.054041

Fast and simple qubit-based synchronization for quantum key distribution

Quantum Physics 2020-05-27 v1

Authors: Luca Calderaro , Andrea Stanco , Costantino Agnesi , Marco Avesani , Daniele Dequal , Paolo Villoresi , Giuseppe Vallone

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Abstract

We propose Qubit4Sync, a synchronization method for Quantum Key Distribution (QKD) setups, based on the same qubits exchanged during the protocol and without requiring additional hardware other than the one necessary to prepare and measure the quantum states. Our approach introduces a new cross-correlation algorithm achieving the lowest computational complexity, to our knowledge, for high channel losses. We tested the robustness of our scheme in a real QKD implementation.

Keywords

quantum key distribution quantum networks superconducting qubits

Cite

@article{arxiv.1909.12050,
  title  = {Fast and simple qubit-based synchronization for quantum key distribution},
  author = {Luca Calderaro and Andrea Stanco and Costantino Agnesi and Marco Avesani and Daniele Dequal and Paolo Villoresi and Giuseppe Vallone},
  journal= {arXiv preprint arXiv:1909.12050},
  year   = {2020}
}

Fast and simple qubit-based synchronization for quantum key distribution

Abstract

Keywords

Cite

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