Reliable numerical key rates for quantum key distribution

Abstract

In this work, we present a reliable, efficient, and tight numerical method for calculating key rates for finite-dimensional quantum key distribution (QKD) protocols. We illustrate our approach by finding higher key rates than those previously reported in the literature for several interesting scenarios (e.g., the Trojan-horse attack and the phase-coherent BB84 protocol). Our method will ultimately improve our ability to automate key rate calculations and, hence, to develop a user-friendly software package that could be used widely by QKD researchers.

Document Details

Document Type
Pub Defense Publication
Publication Date
Jul 26, 2018
Source ID
10.22331/q-2018-07-26-77

Entities

People

  • Adam Winick
  • Norbert Lütkenhaus
  • Patrick J. Coles

Organizations

  • University of Waterloo

Tags

Readers

  • Computer Networking
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Software Engineering.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Key Distribution