Affiliation:
1. Oak Ridge National Laboratory
Abstract
As practical quantum networks prepare to serve an ever-expanding number
of nodes, there has grown a need for advanced auxiliary classical
systems that support the quantum protocols and maintain compatibility
with the existing fiber-optic infrastructure. We propose and
demonstrate a quantum local area network design that addresses current
deployment limitations in timing and security in a scalable fashion
using commercial off-the-shelf components. First, we employ White
Rabbit switches to synchronize three remote nodes with ultra-low
timing jitter, significantly increasing the fidelities of the
distributed entangled states over previous work with Global
Positioning System clocks. Second, using a parallel quantum key
distribution channel, we secure the classical communications needed
for instrument control and data management. In this way, the
conventional network that manages our entanglement network is secured
using keys generated via an underlying quantum key distribution layer,
preserving the integrity of the supporting systems and the relevant
data in a future-proof fashion.
Funder
Advanced Scientific Computing
Research
Basic Energy Sciences
Intelligence Community Postdoctoral
Research Fellowship Program
Subject
Computer Networks and Communications
Cited by
19 articles.
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