Matthew Turner

QTC Scientist

Ph.D. Physics, Harvard University, 2020
B.S. Engineering Physics, UC Berkeley, 2014

Matthew is focused on the development of NV diamond wide-field magnetic imaging applications in biological systems and integrated circuits along with exploring the discovery of new areas of applications. He is also working on improvement of the NV diamond sensors through diamond engineering and enhanced sensing protocol along with working with diamond growers to improve the scalability and accessibility of NV diamond sensors.

Notable Publications

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  2025 (2)
Machine learning for improved current-density reconstruction from two-dimensional vector magnetic images. Niko R. Reed, Danyal Bhutto, Matthew J. Turner, Declan M. Daly, Sean M. Oliver, Jiashen Tang, Kevin S. Olsson, Nicholas Langellier, Mark J.H. Ku, Matthew S. Rosen, & Ronald L. Walsworth. Phys. Rev. Appl., 23: 034035. Mar 2025.
Machine learning for improved current-density reconstruction from two-dimensional vector magnetic images [link] link   Machine learning for improved current-density reconstruction from two-dimensional vector magnetic images [pdf] pdf   doi   link   bibtex   21 downloads  
All-Optical Photoluminescence Spectra of Nitrogen-Vacancy Ensembles in Diamond at Low Magnetic Fields. Xiechen Zheng, Jeyson Tàmara-Isaza, Zechuan Yin, Johannes Cremer, John W. Blanchard, Connor A. Hart, Michael Crescimanno, Paul V. Petruzzi, Matthew J. Turner, & Ronald L. Walsworth. arXiv:2502.11943v1. 2025.
All-Optical Photoluminescence Spectra of Nitrogen-Vacancy Ensembles in Diamond at Low Magnetic Fields [link] link   All-Optical Photoluminescence Spectra of Nitrogen-Vacancy Ensembles in Diamond at Low Magnetic Fields [pdf] pdf   link   bibtex   6 downloads  
  2024 (1)
Machine Learning for Improved Current Density Reconstruction from 2D Vector Magnetic Images. Niko R. Reed, Danyal Bhutto, Matthew J. Turner, Declan M. Daly, Sean M. Oliver, Jiashen Tang, Kevin S. Olsson, Nicholas Langellier, Mark J. H. Ku, Matthew S. Rosen, & Ronald L. Walsworth. arXiv:2407.14553v1. 2024.
Machine Learning for Improved Current Density Reconstruction from 2D Vector Magnetic Images [link] link   Machine Learning for Improved Current Density Reconstruction from 2D Vector Magnetic Images [pdf] pdf   link   bibtex   32 downloads  
  2023 (3)
Quantum diamond microscope for dynamic imaging of magnetic fields. Jiashen Tang, Zechuan Yin, Connor A. Hart, John W. Blanchard, Jner Tzern Oon, Smriti Bhalerao, Jennifer M. Schloss, Matthew J. Turner, & Ronald L. Walsworth. AVS Quantum Science, 5(4): 044403. 11 2023.
Quantum diamond microscope for dynamic imaging of magnetic fields [link] link   Quantum diamond microscope for dynamic imaging of magnetic fields [pdf] pdf   doi   link   bibtex   72 downloads  
Quantum Diamond Microscope for Dynamic Imaging of Magnetic Fields. Jiashen Tang, Zechuan Yin, Connor A. Hart, John W. Blanchard, Jner Tzern Oon, Smriti Bhalerao, Jennifer M. Schloss, Matthew J. Turner, & Ronald L. Walsworth. arXiv:2309.06587. 2023.
Quantum Diamond Microscope for Dynamic Imaging of Magnetic Fields [link] link   Quantum Diamond Microscope for Dynamic Imaging of Magnetic Fields [pdf] pdf   doi   link   bibtex   72 downloads  
Quantum sensors for biomedical applications. Nabeel Aslam, Hengyun Zhou, Elana K. Urbach, Matthew J. Turner, Ronald L. Walsworth, Mikhail D. Lukin, & Hongkun Park. Nature Reviews Physics. February 2023.
Quantum sensors for biomedical applications [link] link   Quantum sensors for biomedical applications [pdf] pdf   doi   link   bibtex   36 downloads  
  2022 (7)
Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images. Maitreyi Ashok, Matthew J. Turner, Ronald L. Walsworth, Edlyn V. Levine, & Anantha P. Chandrakasan. J. Emerg. Technol. Comput. Syst., 18(4). Oct 2022.
Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images [link] link   Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images [pdf] pdf   doi   link   bibtex   99 downloads  
Ramsey envelope modulation in NV diamond magnetometry. Jner Tzern Oon, Jiashen Tang, Connor A. Hart, Kevin S. Olsson, Matthew J. Turner, Jennifer M. Schloss, & Ronald L. Walsworth. Phys. Rev. B, 106: 054110. Aug 2022.
Ramsey envelope modulation in NV diamond magnetometry [link] link   Ramsey envelope modulation in NV diamond magnetometry [pdf] pdf   Ramsey envelope modulation in NV diamond magnetometry [pdf] suppplement   doi   link   bibtex   178 downloads  
Ramsey Envelope Modulation in NV Diamond Magnetometry. Jner Tzern Oon, Jiashen Tang, Connor A. Hart, Kevin S. Olsson, Matthew J. Turner, Jennifer M. Schloss, & Ronald L. Walsworth. arXiv:2205.02387. May 2022.
Ramsey Envelope Modulation in NV Diamond Magnetometry [link] link   Ramsey Envelope Modulation in NV Diamond Magnetometry [pdf] pdf   doi   link   bibtex   178 downloads  
Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images. Maitreyi Ashok, Matthew J. Turner, Ronald L. Walsworth, Edlyn V. Levine, & Anantha P. Chandrakasan. arXiv:2204.14228. May 2022.
Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images [link] link   Hardware Trojan Detection Using Unsupervised Deep Learning on Quantum Diamond Microscope Magnetic Field Images [pdf] pdf   doi   link   bibtex   99 downloads  
Vector Magnetic Current Imaging of an 8 nm Process Node Chip and 3D Current Distributions Using the Quantum Diamond Microscope. Sean M. Oliver, Dmitro J. Martynowych, Matthew J. Turner, David A. Hopper, Ronald L. Walsworth, & Edlyn V. Levine. arXiv:2202.08135. Feb 2022.
Vector Magnetic Current Imaging of an 8 nm Process Node Chip and 3D Current Distributions Using the Quantum Diamond Microscope [link] link   Vector Magnetic Current Imaging of an 8 nm Process Node Chip and 3D Current Distributions Using the Quantum Diamond Microscope [pdf] pdf   link   bibtex   46 downloads  
High-Precision Mapping of Diamond Crystal Strain Using Quantum Interferometry. Mason C. Marshall, Reza Ebadi, Connor Hart, Matthew J. Turner, Mark J.H. Ku, David F. Phillips, & Ronald L. Walsworth. Phys. Rev. Applied, 17: 024041. Feb 2022.
High-Precision Mapping of Diamond Crystal Strain Using Quantum Interferometry [link] link   High-Precision Mapping of Diamond Crystal Strain Using Quantum Interferometry [pdf] pdf   doi   link   bibtex   104 downloads  
Multiplexed Sensing of Magnetic Field and Temperature in Real Time Using a Nitrogen-Vacancy Ensemble in Diamond. Jeong Hyun Shim, Seong-Joo Lee, Santosh Ghimire, Ju Il Hwang, Kwang-Geol Lee, Kiwoong Kim, Matthew J. Turner, Connor A. Hart, Ronald L. Walsworth, & Sangwon Oh. Phys. Rev. Applied, 17: 014009. Jan 2022.
Multiplexed Sensing of Magnetic Field and Temperature in Real Time Using a Nitrogen-Vacancy Ensemble in Diamond [link] link   Multiplexed Sensing of Magnetic Field and Temperature in Real Time Using a Nitrogen-Vacancy Ensemble in Diamond [pdf] pdf   Multiplexed Sensing of Magnetic Field and Temperature in Real Time Using a Nitrogen-Vacancy Ensemble in Diamond [pdf] supplement   doi   link   bibtex   27 downloads  
  2021 (8)
Scanning X-Ray Diffraction Microscopy for Diamond Quantum Sensing. Mason C. Marshall, David F. Phillips, Matthew J. Turner, Mark J. H. Ku, Tao Zhou, Nazar Delegan, F. Joseph Heremans, Martin V. Holt, & Ronald L. Walsworth. Phys. Rev. Applied, 16: 054032. Nov 2021.
Scanning X-Ray Diffraction Microscopy for Diamond Quantum Sensing [link] link   Scanning X-Ray Diffraction Microscopy for Diamond Quantum Sensing [pdf] pdf   Scanning X-Ray Diffraction Microscopy for Diamond Quantum Sensing [pdf] supplement   doi   link   bibtex   51 downloads  
High-precision mapping of diamond crystal strain using quantum interferometry. Mason C. Marshall, Reza Ebadi, Connor Hart, Matthew J Turner, Mark J. H. Ku, David F. Phillips, & Ronald L. Walsworth. arXiv:2108.00304. July 2021.
High-precision mapping of diamond crystal strain using quantum interferometry [link] link   High-precision mapping of diamond crystal strain using quantum interferometry [pdf] pdf   link   bibtex   44 downloads  
Multiplexed sensing of magnetic field and temperature in real time using a nitrogen vacancy spin ensemble in diamond. Jeong Hyun Shim, Seong-Joo Lee, Santosh Ghimire, Ju Il Hwang, Kang Geol Lee, Kiwoong Kim, Matthew J. Turner, Connor A. Hart, Ronald L. Walsworth, & Sangwon Oh. arXiv:2104.12211. 2021.
Multiplexed sensing of magnetic field and temperature in real time using a nitrogen vacancy spin ensemble in diamond [pdf] pdf   Multiplexed sensing of magnetic field and temperature in real time using a nitrogen vacancy spin ensemble in diamond [link] link   link   bibtex   12 downloads  
N-V–Diamond Magnetic Microscopy Using a Double Quantum 4-Ramsey Protocol. Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, Patrick J. Scheidegger, Erik Bauch, & Ronald L. Walsworth. Phys. Rev. Applied, 15: 044020. April 2021.
$\mathrm{N}$-$V$–Diamond Magnetic Microscopy Using a Double Quantum 4-Ramsey Protocol [link] link   $\mathrm{N}$-$V$–Diamond Magnetic Microscopy Using a Double Quantum 4-Ramsey Protocol [pdf] pdf   $\mathrm{N}$-$V$–Diamond Magnetic Microscopy Using a Double Quantum 4-Ramsey Protocol [pdf] supplement   doi   link   bibtex   165 downloads  
Scanning X-ray Diffraction Microscopy for Diamond Quantum Sensing. Mason C. Marshall, David F. Phillips, Matthew J. Turner, Mark J. H. Ku, Tao Zhou, F. Joseph Heremans, Martin V. Holt, & Ronald L. Walsworth. arXiv:2103.08388. March 2021.
Scanning X-ray Diffraction Microscopy for Diamond Quantum Sensing [link] link   Scanning X-ray Diffraction Microscopy for Diamond Quantum Sensing [pdf] pdf   link   bibtex   6 downloads  
Directional detection of dark matter with diamond. Mason C Marshall, Matthew J Turner, Mark J H Ku, David F Phillips, & Ronald L Walsworth. Quantum Science and Technology, 6(2): 024011. Mar 2021.
Directional detection of dark matter with diamond [pdf] pdf   Directional detection of dark matter with diamond [link] link   doi   link   bibtex   34 downloads  
Characterisation of CVD diamond with high concentrations of nitrogen for magnetic-field sensing applications. Andrew Mark Edmonds, Connor A Hart, Matthew J Turner, Pierre-Olivier Colard, Jennifer M Schloss, Kevin Olsson, Raisa Trubko, Matthew L Markham, Adam Rathmill, Ben Horne-Smith, Wilbur Lew, Arul Manickam, Scott Bruce, Peter G Kaup, Jon C Russo, Michael J DiMario, Joseph T South, Jay T Hansen, Daniel J Twitchen, & Ronald Walsworth. Materials for Quantum Technology, 1: 025001. January 2021.
Characterisation of CVD diamond with high concentrations of nitrogen for magnetic-field sensing applications [link] link   Characterisation of CVD diamond with high concentrations of nitrogen for magnetic-field sensing applications [pdf] pdf   doi   link   bibtex   80 downloads  
Micron-Scale NV-NMR Spectroscopy with Signal Amplification by Reversible Exchange. Nithya Arunkumar, Dominik B. Bucher, Matthew J. Turner, Patrick TomHon, David Glenn, Sören Lehmkuhl, Mikhail D. Lukin, Hongkun Park, Matthew S. Rosen, Thomas Theis, & Ronald L. Walsworth. PRX Quantum, 2: 010305. Jan 2021.
Micron-Scale NV-NMR Spectroscopy with Signal Amplification by Reversible Exchange [pdf] pdf   Micron-Scale NV-NMR Spectroscopy with Signal Amplification by Reversible Exchange [link] link   doi   link   bibtex   77 downloads  
  2020 (6)
Micron-scale SABRE-enhanced NV-NMR Spectroscopy. Nithya Arunkumar, Dominik B. Bucher, Matthew J. Turner, Patrick TomHon, David Glenn, Soren Lehmkuhl, Mikhail D. Lukin, Hongkun Park, Matthew S. Rosen, Thomas Theis, & Ronald L. Walsworth. arXiv:2006.03910. 2020.
Micron-scale SABRE-enhanced NV-NMR Spectroscopy [link] link   Micron-scale SABRE-enhanced NV-NMR Spectroscopy [pdf] pdf   link   bibtex   21 downloads  
Decoherence of ensembles of nitrogen-vacancy centers in diamond. Erik Bauch, Swati Singh, Junghyun Lee, Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, John F. Barry, Linh M. Pham, Nir Bar-Gill, Susanne F. Yelin, & Ronald L. Walsworth. Phys. Rev. B, 102: 134210. Oct 2020.
Decoherence of ensembles of nitrogen-vacancy centers in diamond [link] link   Decoherence of ensembles of nitrogen-vacancy centers in diamond [pdf] pdf   doi   link   bibtex   55 downloads  
Magnetic Field Fingerprinting of Integrated-Circuit Activity with a Quantum Diamond Microscope. Matthew J. Turner, Nicholas Langellier, Rachel Bainbridge, Dan Walters, Srujan Meesala, Thomas M. Babinec, Pauli Kehayias, Amir Yacoby, Evelyn Hu, Marko Lon˘car, Ronald L. Walsworth, & Edlyn V. Levine. Physical Review Applied, 14(1): 014097. July 2020.
Magnetic Field Fingerprinting of Integrated-Circuit Activity with a Quantum Diamond Microscope [link] link   Magnetic Field Fingerprinting of Integrated-Circuit Activity with a Quantum Diamond Microscope [pdf] pdf   Magnetic Field Fingerprinting of Integrated-Circuit Activity with a Quantum Diamond Microscope [pdf] supplement   doi   link   bibtex   100 downloads  
Microwave-Assisted Spectroscopy Technique for Studying Charge State in Nitrogen-Vacancy Ensembles in Diamond. D.P.L. Aude Craik, P. Kehayias, A.S. Greenspon, X. Zhang, M.J. Turner, J.M. Schloss, E. Bauch, C.A. Hart, E.L. Hu, & R.L. Walsworth. Physical Review Applied, 14(1): 014009. July 2020.
Microwave-Assisted Spectroscopy Technique for Studying Charge State in Nitrogen-Vacancy Ensembles in Diamond [link] link   Microwave-Assisted Spectroscopy Technique for Studying Charge State in Nitrogen-Vacancy Ensembles in Diamond [pdf] pdf   doi   link   bibtex   33 downloads  
Generation of nitrogen-vacancy ensembles in diamond for quantum sensors: Optimization and scalability of CVD processes. Andrew M. Edmonds, Connor A. Hart, Matthew J. Turner, Pierre-Olivier Colard, Jennifer M. Schloss, Kevin Olsson, Raisa Trubko, Matthew L. Markham, Adam Rathmill, Ben Horne-Smith, Wilbur Lew, Arul Manickam, Scott Bruce, Peter G. Kaup, Jon C. Russo, Michael J. DiMario, Joseph T. South, Jay T. Hansen, Daniel J. Twitchen, & Ronald L. Walsworth. arXiv:2004.01746 [cond-mat, physics:quant-ph]. April 2020.
Generation of nitrogen-vacancy ensembles in diamond for quantum sensors: Optimization and scalability of CVD processes [link] link   Generation of nitrogen-vacancy ensembles in diamond for quantum sensors: Optimization and scalability of CVD processes [pdf] pdf   link   bibtex   12 downloads  
Sensitivity optimization for NV-diamond magnetometry. John F. Barry, Jennifer M. Schloss, Erik Bauch, Matthew J. Turner, Connor A. Hart, Linh M. Pham, & Ronald L. Walsworth. Reviews of Modern Physics, 92(1): 015004. March 2020.
Sensitivity optimization for NV-diamond magnetometry [link] link   Sensitivity optimization for NV-diamond magnetometry [pdf] pdf   doi   link   bibtex   145 downloads  
  2019 (4)
Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers. P. Kehayias, M. J. Turner, R. Trubko, J. M. Schloss, C. A. Hart, M. Wesson, D. R. Glenn, & R. L. Walsworth. Physical Review B, 100(17): 174103. November 2019.
Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers [link] link   Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers [pdf] pdf   Imaging crystal stress in diamond using ensembles of nitrogen-vacancy centers [pdf] supplement   doi   link   bibtex   65 downloads  
Principles and techniques of the quantum diamond microscope. Edlyn V. Levine, Matthew J. Turner, Pauli Kehayias, Connor A. Hart, Nicholas Langellier, Raisa Trubko, David R. Glenn, Roger R. Fu, & Ronald L. Walsworth. Nanophotonics, 8(11): 1945–1973. September 2019.
Principles and techniques of the quantum diamond microscope [link] link   Principles and techniques of the quantum diamond microscope [pdf] pdf   doi   link   bibtex   109 downloads  
Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy. Dominik B. Bucher, Diana P. L. Aude Craik, Mikael P. Backlund, Matthew J. Turner, Oren Ben Dor, David R. Glenn, & Ronald L. Walsworth. Nature Protocols, 14(9): 2707–2747. September 2019.
Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy [link] link   Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy [pdf] pdf   doi   link   bibtex   50 downloads  
Decoherence of dipolar spin ensembles in diamond. Erik Bauch, Swati Singh, Junghyun Lee, Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, John F. Barry, Linh Pham, Nir Bar-Gill, Susanne F. Yelin, & Ronald L. Walsworth. arXiv:1904.08763 [physics, physics:quant-ph]. April 2019.
Decoherence of dipolar spin ensembles in diamond [link] link   Decoherence of dipolar spin ensembles in diamond [pdf] pdf   link   bibtex   8 downloads  
  2018 (2)
Simultaneous Broadband Vector Magnetometry Using Solid-State Spins. Jennifer M. Schloss, John F. Barry, Matthew J. Turner, & Ronald L. Walsworth. Physical Review Applied, 10(3): 034044. September 2018.
Simultaneous Broadband Vector Magnetometry Using Solid-State Spins [link] link   Simultaneous Broadband Vector Magnetometry Using Solid-State Spins [pdf] pdf   Simultaneous Broadband Vector Magnetometry Using Solid-State Spins [pdf] supplement   doi   link   bibtex   36 downloads  
Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control. Erik Bauch, Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner, John F. Barry, Pauli Kehayias, Swati Singh, & Ronald L. Walsworth. Physical Review X, 8(3): 031025. July 2018.
Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control [link] link   Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control [pdf] pdf   Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control [pdf] supplement   doi   link   bibtex   140 downloads  
  2016 (1)
Optical magnetic detection of single-neuron action potentials using quantum defects in diamond. John F. Barry, Matthew J. Turner, Jennifer M. Schloss, David R. Glenn, Yuyu Song, Mikhail D. Lukin, Hongkun Park, & Ronald L. Walsworth. Proceedings of the National Academy of Sciences, 113(49): 14133–14138. December 2016.
Optical magnetic detection of single-neuron action potentials using quantum defects in diamond [link] link   Optical magnetic detection of single-neuron action potentials using quantum defects in diamond [pdf] pdf   Optical magnetic detection of single-neuron action potentials using quantum defects in diamond [pdf] supplement   doi   link   bibtex   125 downloads