Artistic illustration of a communication channel between two partners crossing regions of noise. The noise resistance of the channel is enhanced by distributing information over multiple paths in quantum superposition.
Artistic illustration of a communication channel between two partners crossing regions of noise. The noise resistance of the channel is enhanced by distributing information over multiple paths in quantum superposition. Aloop Visual & Science, University of Vienna) - Noise limits the performance of modern quantum technologies. However, particles traveling in a superposition of paths can bypass noise in communication. A collaboration between the Universities of Hong-Kong, Grenoble and Vienna, as well as the Austrian Academy of Sciences, under the lead of Philip Walther, reveals novel techniques to reduce noise in quantum communication. The results, published in the latest issue of "Physical Review Research", demonstrate that quantum particles traveling in a superposition of paths enable noise reduction in communications. Among the most active fields of research in modern physics, both at an academic level and beyond, are quantum computation and communication, which apply quantum phenomena such as superposition and entanglement to perform calculations, or to exchange information.
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