{"id":1041,"date":"2019-04-29T14:07:15","date_gmt":"2019-04-29T12:07:15","guid":{"rendered":"http:\/\/websrv.saske.sk\/uef\/en\/?page_id=1041"},"modified":"2019-09-03T21:35:29","modified_gmt":"2019-09-03T19:35:29","slug":"centre-of-low-temperature-physics","status":"publish","type":"page","link":"https:\/\/websrv.saske.sk\/uef\/en\/departments\/centre-of-low-temperature-physics\/","title":{"rendered":"Centre of Low Temperature Physics"},"content":{"rendered":"<div class=\"wp-block-image\" style=\"text-align: center\">\n<figure class=\"aligncenter\"><a href=\"http:\/\/cltp.saske.sk\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1145\" src=\"http:\/\/websrv.saske.sk\/uef\/en\/wp-content\/uploads\/sites\/2\/2019\/09\/centre_logo2-150x150.gif\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/figure>\n<\/div>\n<p>Just as blood is a life-giving fluid for our body,\u00a0<strong>liquid helium<\/strong>\u00a0is important for experiments at very low temperatures. Liquid helium (T = 4.2 K) is obtained in the liquefier which is part of the Department\u00b4s infrastructure, and its annual production is about 30 000 litres. This is distributed not only to individual laboratories of the centre, but also to hospitals where it serves\u00a0for cooling the magnets in magnetic resonance tomographs. These magnets, as well as those used in different research (e.g. at CERN), are made of superconductors. For several years superconductors\u2019 physical properties have been intensively studied by various methods in this country (<strong>microcontact spectroscopy<\/strong>,\u00a0<strong>AC calorimetry<\/strong>, or most recently<strong>scanning tunnelling microscopy<\/strong>\u00a0\u2013 STM). Probably the most significant results have been achieved in the study of the superconducting material MgB<sub>2<\/sub>. MgB<sub>2<\/sub>\u00a0has been quickly adopted for use in superconducting magnets thanks to its comparatively high critical temperature and magnetic field values.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/websrv.saske.sk\/uef-intranet-old\/files\/ofnt\/MRT-tomograf.jpg\" alt=\"MRT-tomograf.jpg\" \/><\/figure>\n<\/div>\n<p style=\"text-align: center\"><strong>Superconductors in magnetic resonance diagnostics<\/strong><\/p>\n<p>&nbsp;<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/websrv.saske.sk\/uef-intranet-old\/files\/ofnt\/STM-microscop.jpg\" alt=\"STM-microscop.jpg\" \/><\/figure>\n<\/div>\n<p style=\"text-align: center\"><strong>STM microscope can \u201csee\u201c atoms<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>The characteristics of space<\/strong>\u00a0may also be explored indirectly in the laboratory at ultra-low temperatures (below 1 mK), for example when the rare isotope\u00a0<sup>3<\/sup>He turns superliquid. In such a macroscopic quantum system, we can realistically simulate and observe for instance\u00a0<strong>turbulences and fluctuations of the physical vacuum<\/strong>, phenomena associated with\u00a0<strong>the black-hole event horizon<\/strong>,\u00a0<strong>symmetry breaking after the Big Bang<\/strong>, or the phenomena inside\u00a0<strong>neutron stars<\/strong>. Ultra-low temperatures also provide suitable conditions for t<strong>he experimental study of quantum bits \u2013 qubits<\/strong>\u00a0produced either directly in superliquid<sup>3<\/sup>He or based on nano-SQUIDs. Besides\u00a0extremely low temperatures\u00a0and\u00a0high magnetic fields the Department concentrates on\u00a0research into strongly correlated systems at extremely high pressures\u00a0(up to about 10 GPa) when unexpected properties are observed. Most recently the Department has concentrated its research on the study of\u00a0<strong>reduced-dimension materials<\/strong>. All these research fields at our centre cannot go on without cooperation with top laboratories in the world (especially Berlin, Grenoble, Lancaster, Madrid, Vienna, Santander, Ames, Pohang, Shanghai and Helsinki) and our results have been presented in the most prestigious physics journals.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/websrv.saske.sk\/uef-intranet-old\/files\/ofnt\/universe.jpg\" alt=\"universe.jpg\" \/><\/figure>\n<\/div>\n<p style=\"text-align: center\"><strong>Black hole outside the laboratory<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Just as blood is a life-giving fluid for our body,\u00a0liquid helium\u00a0is important for experiments at very low temperatures. Liquid helium (T = 4.2 K) is&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":26,"menu_order":95,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/pages\/1041"}],"collection":[{"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/comments?post=1041"}],"version-history":[{"count":6,"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/pages\/1041\/revisions"}],"predecessor-version":[{"id":1146,"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/pages\/1041\/revisions\/1146"}],"up":[{"embeddable":true,"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/pages\/26"}],"wp:attachment":[{"href":"https:\/\/websrv.saske.sk\/uef\/en\/wp-json\/wp\/v2\/media?parent=1041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}