{"id":3881,"date":"2010-03-02T00:00:00","date_gmt":"2010-03-02T00:00:00","guid":{"rendered":"https:\/\/wpdev.hmc.edu\/physics\/2010\/03\/02\/optical-spintronics-for-quantum-information-processing-and-magnetic-sensing\/"},"modified":"2010-03-02T00:00:00","modified_gmt":"2010-03-02T00:00:00","slug":"optical-spintronics-for-quantum-information-processing-and-magnetic-sensing","status":"publish","type":"physics_colloquium","link":"https:\/\/www.hmc.edu\/physics\/research\/colloquium\/optical-spintronics-for-quantum-information-processing-and-magnetic-sensing\/","title":{"rendered":"Optical Spintronics for Quantum Information Processing and Magnetic Sensing"},"content":{"rendered":"<figure id=\"page-featured-image\" class=\"wp-block-image is-style-alignleft\" data-pic=\"\"><img decoding=\"async\" src=\"https:\/\/www.hmc.edu\/physics\/wp-content\/uploads\/sites\/22\/2023\/01\/\" alt=\"Promotional image for talk: Elements of a successful scientific talk\" data-pic=\"\" \/><\/figure>\n<p><strong>Speaker(s):<\/strong> Kai-Mei Fu<\/p>\n<p>The optical detection and control of solid-state spins has exciting applications in the fields of quantum information processing and magnetic sensing.  In the first part of the talk I will show how optical pulses can be used to measure the three fundamental relaxation times of electrons bound to donors in GaAs: population relaxation ( T_1 ), inhomogeneous dephasing ( T_2^* ), and homogeneous dephasing ( T_2 ).  These relaxation rates can be used to determine the potential a spin system will have as a qubit in a quantum information application.  In the second part of the talk I discuss how the unique optical and spin properties of nitrogen-vacancy centers in diamond can be used to engineer a highly sensitive magnetic sensor.  A diamond-based magnetic sensing surface is demonstrated and biological applications for this system are discussed.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","class_list":["post-3881","physics_colloquium","type-physics_colloquium","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_colloquium\/3881","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_colloquium"}],"about":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/types\/physics_colloquium"}],"author":[{"embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/media?parent=3881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}