Work

Routing entanglement through quantum networks

Year: 2026

Type: article

Abstract: Entanglement, one of the clearest manifestations of nonclassical physics, holds significant promise for technological applications such as more secure communications and faster computations. In this Letter, we explore the use of nonreciprocal transport in a network of continuous-variable systems to route entanglement in one direction through the network. We develop the theory and discuss a potential realization of controllable flow of entanglement in quantum systems; our method employs only Gaussian interactions and engineered dissipation to break the symmetry. We also explore the conditions under which thermal fluctuations limit the distance over which the entanglement propagates and observe a counterintuitive behavior between this distance, the strength of the entanglement source, and the strength of the hopping through the network.

Source: Physical Review Research

DOI: 10.1103/hsc8-pv2s

Authors: Karl Pelka, Matteo Aquilina, André Xuereb

Institution: University of Malta

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funder: European Commission