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EXPLORING NANOSCALE SPIN PHYSICS USING SINGLE SPINS IN DIAMOND

Zhang, Kai (2018) EXPLORING NANOSCALE SPIN PHYSICS USING SINGLE SPINS IN DIAMOND. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Abstract

Understanding spin physics and controlling solid-state spins at nanometer length scales is of crucial importance in modern physics research. Because of the atomic-scale dimensions, long coherence time, and optical readout, Nitrogen-Vacancy centers (NV centers) in diamond have become prominent for exploring topics in nanoscale spin physics. In this thesis, two questions are investigated using single NV centers: what mechanisms limit the control and measurement of geometric phase of a single solid-state spin qubit, and whether it is feasible to detect electron spin resonance in submicron volumes from copper-ion-labeled molecules. We have obtained limits on the fidelity of geometric phase gates, and showed using newly developed quantum sensing techniques that we are indeed able to detect such extremely weak signals, down to the single spin limit. Our results with NV centers in measuring single electron spins opens the door to a variety of applications of NV center magnetometry in interdisciplinary topics such as research on the dynamics of protein molecules with copper ion labels.

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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Zhang, Kaikaz26@pitt.edu
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairDutt, Gurudevgdutt@pitt.edu
Committee MemberLevy, Jeremyjlevy@pitt.edu
Committee MemberSwanson, Ericswansone@pitt.edu
Committee MemberSaxena, Sunilsksaxena@pitt.edu
Committee MemberDaley, Andrewandrew.daley@strath.ac.uk
Date: 27 September 2018
Date Type: Publication
Defense Date: 9 February 2018
Approval Date: 27 September 2018
Submission Date: 26 July 2018
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 166
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Physics
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: diamond, NV centers, spin physics
Date Deposited: 28 Sep 2018 00:18
Last Modified: 28 Sep 2018 00:18
URI: http://d-scholarship.pitt.edu/id/eprint/35020

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