Ji, Peng
(2018)
TOWARDS QUANTUM NANOMECHANICS WITH A TRAPPED DIAMOND CRYSTAL COUPLED TO AN ELECTRONIC SPIN QUBIT.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
Trapping of a nanodiamond/microdiamond containing Nitrogen-Vacancy centers in the vacuum is an ideal platform to develop a hybrid mechanical system. In such a system, the coupling between the Nitrogen-Vacancy centers and the mechanical motion of a trapped diamond provides pathways for generating a quantum superposition state of the mechanical motion with long coherence time. In this work, I demonstrate our preliminary data in the detection of Nitrogen-Vacancy spin signals from trapped diamonds using optical and magneto-gravitational trapping technologies. I compared the advantages and drawbacks of both techniques and improvements need to be made. I also explored the charge dynamics of Nitrogen-Vacancy centers in diamonds under near-IR laser illumination and first demonstrate low energy (0.95 to 1.18 eV or 1050 to 1300 nm) Multi-photon Photoluminescence Excitation (PLE) spectrum of NV centers in a sub-millimeter diamond crystal.
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Item Type: |
University of Pittsburgh ETD
|
Status: |
Unpublished |
Creators/Authors: |
|
ETD Committee: |
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Date: |
27 September 2018 |
Date Type: |
Publication |
Defense Date: |
20 March 2018 |
Approval Date: |
27 September 2018 |
Submission Date: |
21 July 2018 |
Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
Number of Pages: |
192 |
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: |
Nitrogen Vacancy, diamond, mechanical oscillator, coupling, spin, charge dynamics, multi-photon, PLE. |
Date Deposited: |
27 Sep 2018 18:44 |
Last Modified: |
27 Sep 2018 18:44 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/34962 |
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