In the quantum world, noise is usually seen as disruptive, interfering with delicate quantum states and making it hard for particles to remain coherent or entangled. But now, Giuliano Chiriacò at the University of Catania, Italy, and his colleagues have identified and explored a scenario in which noise protects and even enhances entanglement [1]. This counterintuitive discovery could inspire methods of exploiting noise to improve the performance of quantum devices, the researchers say.
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