Quantum Control of Spins in Diamond for Nanoscale Magnetic Sensing and Imaging
Abstract
Our research activities during the grant period focused on the challenges of highly accurate and precise magnetometry and magnetic imaging using quantum spins inside diamond. Our work has resulted in 6 papers published in peerreviewed journals, with two more currently under consideration by referees. We showed that through the use of novel phase estimation algorithms inspired by quantum information science we can carry out accurate and high dynamic range DC magnetometry as well as lockin detection of oscillating (AC) magnetic fields. We investigated the geometric phase as a route to higher precision quantum information and magnetic sensing applications, and probed the experimental limits to the fidelity of such geometric phase gates. We also demonstrated that there is a spin dependent signal in the charge state flipping of the NV defect center in diamond, which could potentialy be useful for higher fidelity spin readout at room temperature. Some of these projects have now led to further investigation in our lab on multiphoton spectroscopy (manuscript in preparation), and plasmonic guiding of light in metal nanowires (manuscript available on arxiv). In addition, several invited talks were given by the PI, and conference presentations were given by the graduate students and postdocs.
 Authors:

 Univ. of Pittsburgh, PA (United States)
 Publication Date:
 Research Org.:
 Univ. of Pittsburgh, PA (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC22)
 OSTI Identifier:
 1404726
 Report Number(s):
 Final Technical Report
 DOE Contract Number:
 SC0006638
 Resource Type:
 Technical Report
 Country of Publication:
 United States
 Language:
 English
 Subject:
 77 NANOSCIENCE AND NANOTECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 97 MATHEMATICS AND COMPUTING
Citation Formats
Dutt, Gurudev. Quantum Control of Spins in Diamond for Nanoscale Magnetic Sensing and Imaging. United States: N. p., 2017.
Web. doi:10.2172/1404726.
Dutt, Gurudev. Quantum Control of Spins in Diamond for Nanoscale Magnetic Sensing and Imaging. United States. doi:10.2172/1404726.
Dutt, Gurudev. Wed .
"Quantum Control of Spins in Diamond for Nanoscale Magnetic Sensing and Imaging". United States. doi:10.2172/1404726. https://www.osti.gov/servlets/purl/1404726.
@article{osti_1404726,
title = {Quantum Control of Spins in Diamond for Nanoscale Magnetic Sensing and Imaging},
author = {Dutt, Gurudev},
abstractNote = {Our research activities during the grant period focused on the challenges of highly accurate and precise magnetometry and magnetic imaging using quantum spins inside diamond. Our work has resulted in 6 papers published in peerreviewed journals, with two more currently under consideration by referees. We showed that through the use of novel phase estimation algorithms inspired by quantum information science we can carry out accurate and high dynamic range DC magnetometry as well as lockin detection of oscillating (AC) magnetic fields. We investigated the geometric phase as a route to higher precision quantum information and magnetic sensing applications, and probed the experimental limits to the fidelity of such geometric phase gates. We also demonstrated that there is a spin dependent signal in the charge state flipping of the NV defect center in diamond, which could potentialy be useful for higher fidelity spin readout at room temperature. Some of these projects have now led to further investigation in our lab on multiphoton spectroscopy (manuscript in preparation), and plasmonic guiding of light in metal nanowires (manuscript available on arxiv). In addition, several invited talks were given by the PI, and conference presentations were given by the graduate students and postdocs.},
doi = {10.2172/1404726},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {10}
}