{"id":4776,"date":"2014-01-01T00:00:00","date_gmt":"2014-01-01T08:00:00","guid":{"rendered":"https:\/\/wpdev.hmc.edu\/physics\/2014\/01\/01\/testing-bells-inequality-with-cosmic-photons-closing-the-setting-independence-loophole\/"},"modified":"2014-01-01T00:00:00","modified_gmt":"2014-01-01T08:00:00","slug":"testing-bells-inequality-with-cosmic-photons-closing-the-setting-independence-loophole","status":"publish","type":"physics_publications","link":"https:\/\/www.hmc.edu\/physics\/research\/publications\/testing-bells-inequality-with-cosmic-photons-closing-the-setting-independence-loophole\/","title":{"rendered":"Testing Bell&rsquo;s Inequality with Cosmic Photons: Closing the Setting-Independence Loophole"},"content":{"rendered":"\n<p id=\"authors\"><span class=\"facauthor\">Jason Gallicchio<\/span>, Andrew S. Friedman, and David I. Kaiser<\/p>\n\n\n\n<p id=\"doc-link\"><a href=\"https:\/\/www.hmc.edu\/physics\/wp-content\/uploads\/sites\/22\/2023\/02\/pub-110.pdf\">Testing Bell\u2019s Inequality with Cosmic Photons: Closing the Setting-Independence Loophole (PDF)<\/a><\/p>\n\n\n\n<p id=\"journal\"><span class=\"journal-title\">Physical Review Letters<\/span> <strong data-vol=\"112\">112<\/strong> <span id=\"journal-year\">(2014)<\/span> <span id=\"journal-pages\" data-pages=\"195\">195<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Abstract<\/h2>\n\n\n\n<p>We propose a practical scheme to use photons from causally disconnected cosmic sources to set the detectors in an experimental test of Bell\u2019s inequality. In current experiments, with settings determined by quantum random number generators, only a small amount of correlation between detector settings and local hidden variables, established less than a millisecond before each experiment, would suffice to mimic the predictions of quantum mechanics. By setting the detectors using pairs of quasars or patches of the cosmic microwave background, observed violations of Bell\u2019s inequality would require any such coordination to have existed for billions of years\u2014an improvement of 20 orders of magnitude.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jason Gallicchio, Andrew S. Friedman, and David I. Kaiser Testing Bell\u2019s Inequality with Cosmic Photons: Closing the Setting-Independence Loophole (PDF) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","publication_author":[16],"class_list":["post-4776","physics_publications","type-physics_publications","status-publish","hentry","publication_author-gallicchio"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_publications\/4776","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_publications"}],"about":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/types\/physics_publications"}],"author":[{"embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/media?parent=4776"}],"wp:term":[{"taxonomy":"publication_author","embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/publication_author?post=4776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}