{"id":6773,"date":"2018-01-12T12:08:15","date_gmt":"2018-01-12T11:08:15","guid":{"rendered":"http:\/\/physics.uwb.edu.pl\/wf\/?page_id=6773"},"modified":"2019-02-07T11:35:42","modified_gmt":"2019-02-07T10:35:42","slug":"o-marianie-smoluchowskim-w-setna-rocznice-smierci-2-2","status":"publish","type":"page","link":"https:\/\/physics.uwb.edu.pl\/wf\/?page_id=6773","title":{"rendered":"Funkcjona\u0142y liniowe w opisie kwantowej teorii pola"},"content":{"rendered":"<h3 style=\"text-align: left\"><strong>Seminarium wydzia\u0142owe<\/strong><\/h3>\n<p style=\"text-align: left\">Dnia 2018-01-16 o godzinie 12:15 w sali 2011 Wydzia\u0142u Fizyki UwB odb\u0119dzie si\u0119 seminarium, na kt\u00f3rym dr hab. Jerzy Przeszowski z Zak\u0142adu Teorii Pola WF UwB wyg\u0142osi wyk\u0142ad pt:<\/p>\n<p style=\"text-align: center\">&nbsp;<\/p>\n<p style=\"text-align: center\"><strong>&#8220;<\/strong><strong>Funkcjona\u0142y liniowe w opisie <\/strong><strong>kwantowej teorii pola<\/strong><strong>&#8220;<\/strong><\/p>\n<p>&nbsp;<\/p>\n<div>W tym seminarium zostanie om\u00f3wiony problem definicji stanu pr\u00f3\u017cni oraz stan\u00f3w jedno i wielocz\u0105stkowych. Dla formalizmu r\u00f3wnoczasowego, aby zdefiniowa\u0107 pr\u00f3\u017cni\u0119 nale\u017cy dokona\u0107 diagonalizacji operatora hamiltonianu, a to jest \u015bci\u015ble wykonalne jedynie dla wi\u0119kszo\u015bci modeli<\/div>\n<div>liniowych. Dla modelu z oddzia\u0142ywaniem, w ramach rachunku zaburze\u0144, otrzymujemy nietrywialny stan pr\u00f3\u017cni z wirtualnymi parami cz\u0105stka &#8211; antycz\u0105stka. Odmienna sytuacja zachodzi dla formalizmu na froncie \u015bwietlnym,&nbsp; gdzie stan pr\u00f3\u017cni jest zdefiniowany bez udzia\u0142u operatora hamiltonianu. St\u0105d pr\u00f3\u017cnia na froncie \u015bwietlnym jest pusta,&nbsp; ale to nie wyklucza pojawienia si\u0119 wirtualnych par cz\u0105stka &#8211; antycz\u0105stka. Po to, aby opisa\u0107 poprawnie stan jedno lub wielocz\u0105stkowy, musimy dokona\u0107 u\u015brednienia po czasie, a wtedy hamiltonian w\u0142\u0105cza si\u0119 do gry.<\/div>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right\">Serdecznie zapraszamy<\/p>\n<p style=\"text-align: right\"><strong>Piotr Jaranowski i Jerzy Przeszowski<\/strong><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seminarium wydzia\u0142owe Dnia 2018-01-16 o godzinie 12:15 w sali 2011 Wydzia\u0142u Fizyki UwB odb\u0119dzie si\u0119 seminarium, na kt\u00f3rym dr hab. Jerzy Przeszowski z Zak\u0142adu Teorii Pola WF UwB wyg\u0142osi wyk\u0142ad <a href=\"https:\/\/physics.uwb.edu.pl\/wf\/?page_id=6773\" class=\"more-link\">[&hellip;]<\/a><\/p>\n","protected":false},"author":14,"featured_media":3366,"parent":822,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"Layout":"","footnotes":""},"categories":[69],"tags":[],"class_list":["entry","author-ulag","post-6773","page","type-page","status-publish","has-post-thumbnail","category-seminarium_pl"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P7nvcn-1Lf","_links":{"self":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/pages\/6773","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6773"}],"version-history":[{"count":2,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/pages\/6773\/revisions"}],"predecessor-version":[{"id":6777,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/pages\/6773\/revisions\/6777"}],"up":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/pages\/822"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=\/wp\/v2\/media\/3366"}],"wp:attachment":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}