{"id":122647,"date":"2015-09-08T02:00:00","date_gmt":"2015-09-07T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=9ef03935db43ead42e366d598d86cd55"},"modified":"2015-09-08T02:00:00","modified_gmt":"2015-09-07T23:00:00","slug":"puzzles-of-dark-energy-in-the-universe-phantom","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=122647","title":{"rendered":"Puzzles of dark energy in the Universe\u2014phantom"},"content":{"rendered":"<p>This paper is devoted to some simple approach based on general physics tools to describe the<br \/>\nphysical properties of a hypothetical particle which can be the source of dark energy in the<br \/>\nUniverse known as phantom. Phantom is characterized by the fact that it possesses negative momentum<br \/>\nand kinetic energy and that it gives dominant negative pressure which acts as antigravity. We<br \/>\nconsider a phantom harmonic oscillator in comparison to a standard harmonic oscillator. By using the<br \/>\nfirst law of thermodynamics we explain why the energy density of the Universe grows when it is<br \/>\nfilled with phantom. We also show how the collision of phantom with a standard particle leads to<br \/>\nextraction of energy from the former by the latter (i.e. from phantom to the standard) if their<br \/>\nmasses are different. The most striking of our conclusions is that the collision of phantom and<br \/>\nstandard particles of the same mass is impossible unless both of them are at rest and suddenly start<br \/>\nmoving with opposite velocit&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This paper is devoted to some simple approach based on general physics tools to describe the<br \/>\nphysical properties of a hypothetical particle which can be the source of dark energy in the<br \/>\nUniverse known as phantom. Phantom is characterized by the fact &#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-122647","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\/122647","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=122647"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/122647\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=122647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=122647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=122647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}