Entanglement Enabled Data Transmission over an Arbitrarily Varying Channel
Janis N\"otzel, Florian Seitz

TL;DR
This paper demonstrates how entangled two-mode squeezed states can be used to distribute shared randomness in optical communication systems, enabling secure data transmission against energy-limited jammers.
Contribution
It introduces a novel method using entanglement for distributing shared randomness in optical channels with arbitrarily varying jammers.
Findings
Entanglement-based distribution outperforms classical methods under jamming.
The approach is effective with binary phase shift keying and two-mode squeezed vacuum states.
The method enhances communication stability against energy-limited adversaries.
Abstract
Shared randomness is the central ingredient for stabilizing symmetrizable communication systems against arbitrarily varying jammers. Given the presence of the jammer, however, the question arises how this precious resource could have been distributed. Several works discuss the use of external sources for this task. In this work, we show, based on the most standard optical communication model, how the sender and receiver can employ entangled two-mode squeezed states to counter the jamming attack of an energy-limited jammer during the distribution phase when both the sender and jammer are allowed to use binary phase shift keying and two-mode squeezed vacuum states.
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