{"id":1914,"date":"2014-11-04T14:19:54","date_gmt":"2014-11-04T20:19:54","guid":{"rendered":"https:\/\/uwm.edu\/physics\/?post_type=tribe_events&#038;p=1914"},"modified":"2023-02-07T09:55:05","modified_gmt":"2023-02-07T15:55:05","slug":"condensed-matter-physics-talk","status":"publish","type":"tribe_events","link":"https:\/\/uwm.edu\/physics\/event\/condensed-matter-physics-talk\/","title":{"rendered":"Condensed Matter Physics Talk: Yuxuan Wang"},"content":{"rendered":"<p><strong>Charge Orders and Symmetry Breaking in Underdoped Cuprates<\/strong><br \/>\n<strong>Yuxuan Wang<\/strong>, Physics PhD Student, UW-Madison<br \/>\nPhysics &#8211; Room 481<\/p>\n<p>Recent experiments in STM, neutron scattering, and x-ray have provided strong evidence that incommensurate static charge orders with momenta (Q,0) and (0,Q) exist in underdoped cuprates. In the same doping range and at higher<br \/>\ntemperatures, there is evidence for broken rotational symmetry and broken time-reversal symmetry. In this talk, I will present a theoretical study to explain the existence and doping dependence of the charge order. I will then discuss the interplay between different charge order parameters. Using a Ginzburg-Landau analysis, I show that rotational symmetry and time-reversal symmetry are both broken in the ground state.<\/p>\n<p>Moreover, going beyond a mean-field analysis, I show that these discrete symmetries actually become broken at higher temperatures than the charge order onset temperature. I argue that such a state with broken discrete symmetries is a candidate for the enigmatic pseudogap in the cuprates and provides a &#8220;missing link&#8221; in understanding the cuprate physics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Charge Orders and Symmetry Breaking in Underdoped Cuprates Yuxuan Wang, Physics PhD Student, UW-Madison Physics &#8211; Room 481 Recent experiments in STM, neutron scattering, and x-ray have provided strong evidence that incommensurate static charge orders with momenta (Q,0) and (0,Q) &hellip;<\/p>\n","protected":false},"author":63,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_tribe_events_status":"","_tribe_events_status_reason":"","_tribe_events_is_hybrid":"","_tribe_events_is_virtual":"","_tribe_events_virtual_video_source":"","_tribe_events_virtual_embed_video":"","_tribe_events_virtual_linked_button_text":"","_tribe_events_virtual_linked_button":"","_tribe_events_virtual_show_embed_at":"","_tribe_events_virtual_show_embed_to":[],"_tribe_events_virtual_show_on_event":"","_tribe_events_virtual_show_on_views":"","_tribe_events_virtual_url":"","footnotes":"","uwm_wg_additional_authors":[]},"tags":[],"tribe_events_cat":[],"class_list":["post-1914","tribe_events","type-tribe_events","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Physics &amp; 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