{"id":347,"date":"2018-04-30T22:31:24","date_gmt":"2018-05-01T02:31:24","guid":{"rendered":"http:\/\/sites.williams.edu\/ion\/?p=347"},"modified":"2018-08-12T22:42:20","modified_gmt":"2018-08-13T02:42:20","slug":"first-isotope-shift-data","status":"publish","type":"post","link":"https:\/\/sites.williams.edu\/ion\/uncategorized\/first-isotope-shift-data\/","title":{"rendered":"First Isotope Shift Data"},"content":{"rendered":"<p>As a preliminary towards our plans to study heat transport in nanoscale systems using trapped ion chains as a 1D model, we need to measure the isotope shift in the Ca<sup>+<\/sup> 729 nm electric quadrupole transition.\u00a0 It turns out that this type of measurement also has applications to probing beyond-Standard-Model physics by looking for non-linearities in King plots of the isotope shifts on two transitions in the same system &#8211; see for example PRL\u00a0<strong>120<\/strong>, 091801 (2018).<\/p>\n<p>In any case, we&#8217;ve just taken our first super-preliminary isotope shift data.\u00a0 Here we are co-trapping <sup>40<\/sup>Ca<sup>+<\/sup> and\u00a0<sup>40<\/sup>Ca<sup>+<\/sup> and driving them simultaneously with two frequency sidebands applied to our 729 nm laser with an EOM:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-348\" src=\"https:\/\/sites.williams.edu\/ion\/files\/2018\/08\/First_IS_data-300x124.jpg\" alt=\"\" width=\"583\" height=\"241\" srcset=\"https:\/\/sites.williams.edu\/ion\/files\/2018\/08\/First_IS_data-300x124.jpg 300w, https:\/\/sites.williams.edu\/ion\/files\/2018\/08\/First_IS_data-768x317.jpg 768w, https:\/\/sites.williams.edu\/ion\/files\/2018\/08\/First_IS_data-1024x422.jpg 1024w, https:\/\/sites.williams.edu\/ion\/files\/2018\/08\/First_IS_data.jpg 1404w\" sizes=\"auto, (max-width: 583px) 100vw, 583px\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As a preliminary towards our plans to study heat transport in nanoscale systems using trapped ion chains as a 1D model, we need to measure the isotope shift in the Ca+ 729 nm electric quadrupole transition.\u00a0 It turns out that &hellip; <a href=\"https:\/\/sites.williams.edu\/ion\/uncategorized\/first-isotope-shift-data\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":996,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-347","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts\/347","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/users\/996"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/comments?post=347"}],"version-history":[{"count":1,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts\/347\/revisions"}],"predecessor-version":[{"id":349,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts\/347\/revisions\/349"}],"wp:attachment":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/media?parent=347"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/categories?post=347"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/tags?post=347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}