{"id":338,"date":"2022-12-14T19:21:23","date_gmt":"2022-12-14T19:21:23","guid":{"rendered":"https:\/\/live-optics-wp.pantheonsite.io\/pjessen\/?p=338"},"modified":"2022-12-14T21:02:49","modified_gmt":"2022-12-14T21:02:49","slug":"17_faraday","status":"publish","type":"post","link":"https:\/\/wp.optics.arizona.edu\/pjessen\/2022\/12\/14\/17_faraday\/","title":{"rendered":"17_faraday"},"content":{"rendered":"\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:30px\"><strong>Faraday Spectroscopy in an Optical Lattice: a continuous probe of atomic dynamics<\/strong><\/p>\n\n\n\n<p class=\"center\" style=\"text-align: center\">\u00a0<\/p>\n<hr \/>\n<p class=\"center\" style=\"text-align: center\"><strong>Greg A. Smith, Souma Chaudhury, and Poul S. Jessen<\/strong><\/p>\n<p class=\"center\" style=\"text-align: center\"><strong>Optical Sciences Center, University of Arizona, Tucson, AZ 85721<br \/><\/strong>\u00a0<\/p>\n<p class=\"center\" style=\"text-align: center\">The linear Faraday effect is used to implement a continuous measurement of the spin of a sample of laser cooled atoms trapped in an optical lattice. One of the optical lattice beams serves also as a probe beam, thereby allowing one to monitor the atomic dynamics in real time and with minimal perturbation. A simple theory is developed to predict the measurements sensitivity and associated cost in terms of decoherence caused by scattering of probe photons. Calculated signal-to-noise ratios in measurements of Larmor precession are found to agree with experimental data for a wide range of lattice intensity and detuning. Finally, quantum backaction is estimated by comparing the measurement sensitivity to spin projection noise, and shown to be insignificant in the current experiment. A continuous quantum measurement based on Faraday spectroscopy in optical lattices may open up new possibilities for the study of quantum feedback and classically chaotic quantum systems.<br \/>\u00a0<\/p>\n<p class=\"center\" style=\"text-align: center\"><a href=\"https:\/\/wp.optics.arizona.edu\/pjessen\/publications\/\">Back<\/a> | <a href=\"http:\/\/wp.optics.arizona.edu\/pjessen\/wp-content\/uploads\/sites\/116\/2022\/12\/17_faraday.pdf\">Full Text<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Faraday Spectroscopy in an Optical Lattice: a continuous probe of atomic dynamics<\/p>\n","protected":false},"author":245,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,1],"tags":[],"class_list":["post-338","post","type-post","status-publish","format-standard","hentry","category-29","category-abstracts"],"_links":{"self":[{"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/posts\/338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/users\/245"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/comments?post=338"}],"version-history":[{"count":1,"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/posts\/338\/revisions"}],"predecessor-version":[{"id":339,"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/posts\/338\/revisions\/339"}],"wp:attachment":[{"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/media?parent=338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/categories?post=338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/pjessen\/wp-json\/wp\/v2\/tags?post=338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}