{"id":88251,"date":"2019-02-28T17:45:28","date_gmt":"2019-03-01T01:45:28","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2019\/02\/cooperativity-and-entanglement-pave-way-for-ground-state-cooling-using-nitrogen-vacancy-centers"},"modified":"2019-02-28T17:45:28","modified_gmt":"2019-03-01T01:45:28","slug":"cooperativity-and-entanglement-pave-way-for-ground-state-cooling-using-nitrogen-vacancy-centers","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2019\/02\/cooperativity-and-entanglement-pave-way-for-ground-state-cooling-using-nitrogen-vacancy-centers","title":{"rendered":"Cooperativity and entanglement pave way for ground-state cooling using nitrogen vacancy centers"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/cooperativity-and-entanglement-pave-way-for-ground-state-cooling-using-nitrogen-vacancy-centers3.jpg\"><\/a><\/p>\n<p>Center for Nanoscale Materials researchers present a quantum model for achieving ground-state cooling in low frequency mechanical resonators and show how cooperativity and entanglement are key factors to enhance the cooling figure of merit.<\/p>\n<p>A resonator with near-zero thermal noise has better performance characteristics in nanoscale sensing, quantum memories, and quantum information processing applications. Passive cryogenic cooling techniques, such as dilution refrigerators, have successfully cooled high-frequency resonators but are not sufficient for lower frequency systems. The optomechanical effect has been applied successfully to cool low-frequency systems after an initial cooling stage. This method parametrically couples a mechanical resonator to a driven optical cavity, and, through careful tuning of the drive frequency, achieves the desired cooling effect. The optomechanical effect is expanded to an alternative approach for ground-state cooling based on embedded solid-state defects. Engineering the atom-resonator coupling parameters is proposed, using the strain profile of the mechanical resonator allowing cooling to proceed through the dark entangled states of the two-level system ensemble.<\/p>\n<p><!-- Link: <a href=\"https:\/\/phys.org\/news\/2019-02-cooperativity-entanglement-pave-ground-state-cooling.html\">https:\/\/phys.org\/news\/2019&#45;02-cooperativity-entanglement...oling.html<\/a> --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Center for Nanoscale Materials researchers present a quantum model for achieving ground-state cooling in low frequency mechanical resonators and show how cooperativity and entanglement are key factors to enhance the cooling figure of merit. A resonator with near-zero thermal noise has better performance characteristics in nanoscale sensing, quantum memories, and quantum information processing applications. Passive [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,4,48,1617],"tags":[],"class_list":["post-88251","post","type-post","status-publish","format-standard","hentry","category-engineering","category-nanotechnology","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/88251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=88251"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/88251\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=88251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=88251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=88251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}