《自然》(20260312出版)一周论文导读—新闻—科学网

分别产生对称(反铁磁型)与非对称(铁磁型)驱动力。自然周论

研究引入两种偶极聚合物的出版高温不混溶共混体系,网站或个人从本网站转载使用,文导闻科

▲ Abstract:

The 读新sensitivity of non-local optical measurements at low light intensities, such as those involved in long-baseline telescope arrays, is limited by fundamental quantum noise and photon losses3. Distributed quantum entanglement has been proposed as a route towards overcoming these limitations and accessing new regimes of non-local optical sensing. Here we demonstrate the use of entangled quantum memories in a quantum network of silicon–vacancy centres in diamond nanocavities to experimentally perform such non-local phase measurements. Specifically, we combine the generation of event-ready remote quantum entanglement, photon mode erasure that hides the ‘which-path’ information of temporally and spatially separated incoming optical modes and non-local, non-destructive photon heralding enabled by remote entanglement to perform a proof-of-concept entanglement-assisted differential phase measurement of weak incident light between two spatially separate stations. Demonstrating successful operation of the remote phase sensing protocol with a fibre link baseline up to 1.55km, our results provide an opportunity for a new class of quantum-enhanced optical imaging methods with potential applications ranging from long-baseline interferometry and astronomy to microscopy.