{"id":290201,"date":"2016-10-06T02:00:00","date_gmt":"2016-10-05T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=d4532cf118251a18789168f420969e99"},"modified":"2016-10-06T02:00:00","modified_gmt":"2016-10-05T23:00:00","slug":"how-the-instant-collapse-of-a-spatially-extended-quantum-state-is-consistent-with-the-relativity-ofsimultaneity","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=290201","title":{"rendered":"How the instant collapse of a spatially-extended quantum state is consistent with the relativity of\r\nsimultaneity"},"content":{"rendered":"<p>A thought experiment is considered on the observation of the instantaneous collapse of an extended<br \/>\nwave packet. According to the relativity of simultaneity, such a collapse being instantaneous in<br \/>\nsome reference frame must be a lasting process in other frames. But according to quantum mechanics,<br \/>\ncollapse is instantaneous in any frame. The probabilistic nature of quantum-mechanical phenomena<br \/>\neliminates any contradictions between these two apparently conflicting statements. It is shown that<br \/>\nthe consistency of quantum collapse with relativity follows directly from the Born postulate without<br \/>\nany use of mathematical properties of quantum operators, which allows us to discuss this topic in an<br \/>\nintroductory course of modern physics. The consistency of quantum mechanics with relativity is also<br \/>\nshown for instant disentanglement of an extended composite system.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A thought experiment is considered on the observation of the instantaneous collapse of an extended<br \/>\nwave packet. According to the relativity of simultaneity, such a collapse being instantaneous in<br \/>\nsome reference frame must be a lasting process in othe&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-290201","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/290201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=290201"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/290201\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=290201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=290201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=290201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}