Catálogo de publicaciones - revistas

<jats:title>Slow circulation in the cold Arctic</jats:title> <jats:p> The Arctic Ocean and Nordic Seas together supply dense, sinking water to the Atlantic Meridional Overturning Circulation (AMOC). The redistribution of heat by the AMOC, in turn, exerts a major influence on climate in the Northern Hemisphere. Thornalley <jats:italic>et al.</jats:italic> report that during the last glacial period, those regions were nearly stagnant and supplied almost none of the water that they presently contribute to the AMOC. This low rate of flow into the Atlantic was probably due to an absence of vigorous deep-water formation in the Arctic Mediterranean as a consequence of the extensive ice cover there at that time. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6249" page="706" related-article-type="in-this-issue" vol="349" xlink:href="10.1126/science.aaa9554">706</jats:related-article> </jats:p>

<jats:title>Complex quantum optical circuitry</jats:title> <jats:p> Encoding and manipulating information in the states of single photons provides a potential platform for quantum computing and communication. Carolan <jats:italic>et al.</jats:italic> developed a reconfigurable integrated waveguide device fabricated in a glass chip (see the Perspective by Rohde and Dowling). The device allowed for universal linear optics transformations on six wave-guides using 15 integrated Mach-Zehnder interferometers, each of which was individually programmable. Functional performance in a number of applications in optics and quantum optics demonstrates the versatility of the device's reprogrammable architecture. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6249" page="711" related-article-type="in-this-issue" vol="349" xlink:href="10.1126/science.aab3642">711</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6249" page="696" related-article-type="in-this-issue" vol="349" xlink:href="10.1126/science.aac7250">696</jats:related-article> </jats:p>