G\u00fcnl\u00fck hayatta, Isaac Newton\u2019un ortaya koydu\u011fu Hareketin \u0130kinci Yasas\u0131\u2019nda belirtildi\u011fi gibi, e\u011fer bir nesneye kuvvet uygulan\u0131rsa, nesne kuvvetle ayn\u0131 y\u00f6nde bir ivme kazan\u0131r. Fakat teoride, k\u00fctle de ayn\u0131 elektrik y\u00fck gibi negatif bir de\u011fere sahip olabilir. Bu fenomen Physical Review Letters adl\u0131 dergide anlat\u0131l\u0131yor.<\/p>\n
Washington Eyalet \u00dcniveritesi\u2019nden (WSU) Prof. Peter Engels ve meslekta\u015flar\u0131, rubidyum atomlar\u0131n\u0131 mutlak s\u0131f\u0131r noktas\u0131n\u0131n \u00e7ok yak\u0131n\u0131na kadar (neredeyse -273 C) so\u011futtular ve Bose-Einstein yo\u011fu\u015fmas\u0131 elde ettiler. Maddenin\u00a0 bu halindeyken atomlar, a\u015f\u0131r\u0131 yava\u015f hareket ederler ve kuantum mekani\u011finin \u00f6ng\u00f6rd\u00fc\u011f\u00fc \u015fekilde davran\u0131\u015f g\u00f6sterirler; yani dalga gibi davran\u0131rlar. Ayr\u0131ca senkronize olurlar ve hepsi ayn\u0131 \u015fekilde hareket ederek, enerji kaybetmeden akan s\u00fcper s\u0131v\u0131 (superfluid) olarak adland\u0131r\u0131lan bir yap\u0131 olu\u015ftururlar.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar negatif k\u00fctleye uygun ortam\u0131 yaratabilmek i\u00e7in lazer yard\u0131m\u0131yla rubidyum atomlar\u0131n\u0131 kapana k\u0131st\u0131r\u0131p, onlar\u0131 ileri geri iterek spinlerinin y\u00f6n\u00fcn\u00fc de\u011fi\u015ftirdiler. Atomlar, bu lazer kapan\u0131ndan kurtulduklar\u0131nda geni\u015flediler ve baz\u0131lar\u0131 negatif k\u00fctle olu\u015fturdular.<\/p>\n
WSU\u2019da yard\u0131mc\u0131 do\u00e7ent olan fizik\u00e7i Micheal Forbes \u015f\u00f6yle s\u00f6yl\u00fcyor; \u201cNegatif k\u00fctleli bir nesneyi iterseniz, size do\u011fru ivmelenir\u201d ve ekliyor, \u201cBu olay d\u0131\u015far\u0131dan sanki rubidyum g\u00f6r\u00fcnmez bir duvara vuruyormu\u015f gibi g\u00f6r\u00fcn\u00fcyor.\u201d<\/p>\n
Ara\u015ft\u0131rmac\u0131lar Bose-Einstein yo\u011fu\u015fmas\u0131n\u0131n kullan\u0131ld\u0131\u011f\u0131 bu tekni\u011fin, negatif k\u00fctlenin daha iyi anla\u015f\u0131lmas\u0131nda kullan\u0131labilece\u011fini s\u00f6yl\u00fcyor. Dr. Forbes, bu ara\u015ft\u0131rman\u0131n \u00f6nemini \u015fu \u015fekilde anlat\u0131yor: \u201cBurada yeni olan negatif k\u00fctlenin do\u011fas\u0131 \u00fczerinde komplikasyonsuz bir \u015fekilde kontrol sahibi olmam\u0131z.\u201d<\/p>\n
Bu y\u00fcksek kontrol ba\u015far\u0131s\u0131 ara\u015ft\u0131rmac\u0131lara, evrende g\u00f6r\u00fclen n\u00f6tron y\u0131ld\u0131zlar\u0131, kara delikler ve kara enerji gibi fenomenlerin negatif k\u00fctleyle olabilecek ili\u015fkilerinin anla\u015f\u0131lmas\u0131nda \u00f6nemli bir ara\u00e7 sa\u011flayabilir.<\/p>\n","protected":false},"excerpt":{"rendered":"
G\u00fcnl\u00fck hayatta, Isaac Newton\u2019un ortaya koydu\u011fu Hareketin \u0130kinci Yasas\u0131\u2019nda belirtildi\u011fi gibi, e\u011fer bir nesneye kuvvet uygulan\u0131rsa, nesne kuvvetle ayn\u0131 y\u00f6nde bir ivme kazan\u0131r. Fakat teoride, k\u00fctle de ayn\u0131 elektrik y\u00fck gibi negatif bir de\u011fere sahip olabilir. Bu fenomen Physical Review Letters adl\u0131 dergide anlat\u0131l\u0131yor. Washington Eyalet \u00dcniveritesi\u2019nden (WSU) Prof. Peter Engels ve meslekta\u015flar\u0131, rubidyum atomlar\u0131n\u0131 […]<\/p>\n","protected":false},"author":811,"featured_media":12714,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[516,19,26],"tags":[250,288,1091,1090],"class_list":["post-10112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-159-sayi","category-bilim-gundemi","category-fizik","tag-atom-fizigi","tag-fizik","tag-kutle","tag-negatif-kutle"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/10112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/811"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=10112"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/10112\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/12714"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=10112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=10112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=10112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}