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Title:Investigations of quantum sensing techniques for deflection and displacement metrology
Author(s):Krafczyk, Courtney L.
Director of Research:Kwiat, Paul
Doctoral Committee Chair(s):Cooper, Lance
Doctoral Committee Member(s):Vishveshwara, Smitha; Lorenz, Virginia
Department / Program:Physics
Discipline:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):standard quantum limit quantum measurement precision measurement weak measurement spatial entanglement spontaneous parametric downconversion
Abstract:We discuss our effort toward designing experiments to surpass the standard quantum limit in deflection and displacement measurements. First, we review weak measurement techniques, then describe our strategy and results from implementing recycling to measure a beam deflection. We then discuss how spatial correlations emerge from spontaneous parametric downconversion and how we utilize those correlations to improve the achievable resolution of a beam displacement. Finally, we discuss a possible way to use a quantum eraser to improve the signal from an atomic force microscope.
Issue Date:2019-09-26
Type:Text
URI:http://hdl.handle.net/2142/106160
Rights Information:Copyright 2019 Courtney Krafczyk
Date Available in IDEALS:2020-03-02
Date Deposited:2019-12


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