Mark Ku

Assistant Professor Physics, University of Deleware, and QTC Affiliate Scientist

Ph.D. Physics, Massachusetts Institute of Technology, 2015
M.S. Physics, University of British Columbia, 2009
B.S. Physics, University of British Columbia, 2007

Mark’s research focuses on probing condensed matter physics with quantum diamond sensors and technology development for various quantum diamond applications.

Fun Fact: Mark has a black belt in mixed martial arts and claims that if he didn’t do physics he would pursue a career as a UFC fighter!

Notable Publications

generated by bibbase.org
  2025 (1)
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  
  2024 (3)
Diamond micro-chip for quantum microscopy. Shahidul Asif, Hang Chen, Johannes Cremer, Shantam Ravan, Jeyson Támara-Isaza, Saurabh Lamsal, Reza Ebadi, Yan Li, Ling-Jie Zhou, Cui-Zu Chang, John Q. Xiao, Amir Yacoby, Ronald L. Walsworth, & Mark J. H. Ku. AVS Quantum Science, 6(4): 044405. 12 2024.
Diamond micro-chip for quantum microscopy [link] link   Diamond micro-chip for quantum microscopy [pdf] pdf   Diamond micro-chip for quantum microscopy [pdf] supplement   doi   link   bibtex   6 downloads  
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  
Diamond Micro-Chip for Quantum Microscopy. Shahidul Asif, Hang Chen, Johannes Cremer, Shantam Ravan, Jeyson Tamara-Isaza, Saurabh Lamsal, Reza Ebadi, Yan Li, Ling-Jie Zhou, Cui-Zu Chang, John Q. Xiao, Amir Yacoby, Ronald L. Walsworth, & Mark J. H. Ku. arXiv:2403.10414. 2024.
Diamond Micro-Chip for Quantum Microscopy [link] link   Diamond Micro-Chip for Quantum Microscopy [pdf] pdf   doi   link   bibtex   6 downloads  
  2023 (2)
Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins. Junghyun Lee, Mamiko Tatsuta, Andrew Xu, Erik Bauch, Mark J. H. Ku, & Ronald L. Walsworth. npj Quantum Information, 9(1): 77. Aug 2023.
Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins [link] link   Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins [pdf] pdf   Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins [pdf] supplement   doi   link   bibtex   6 downloads  
Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond. Junghyun Lee, Keigo Arai, Huiliang Zhang, Mark J. H. Ku, & Ronald L. Walsworth. npj Quantum Information, 9(1): 66. Jul 2023.
Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond [link] link   Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond [pdf] pdf   Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond [pdf] supplement   doi   link   bibtex   2 downloads  
  2022 (3)
Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond. Junghyun Lee, Keigo Arai, Huiliang Zhang, Mark J. H. Ku, & Ronald L. Walsworth. arXiv:2211.13438. December 2022.
Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond [link] link   Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond [pdf] pdf   doi   link   bibtex  
Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins. Junghyun Lee, Mamiko Tatsuta, Andrew Xu, Erik Bauch, Mark J. H. Ku, & Ronald. L. Walsworth. arXiv:2203.07610. Mar 2022.
Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins [link] link   Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins [pdf] pdf   doi   link   bibtex   17 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   103 downloads  
  2021 (4)
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  
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  
  2020 (2)
Imaging viscous flow of the Dirac fluid in graphene. Mark J. H. Ku, Tony X. Zhou, Qing Li, Young J. Shin, Jing K. Shi, Claire Burch, Laurel E. Anderson, Andrew T. Pierce, Yonglong Xie, Assaf Hamo, Uri Vool, Huiliang Zhang, Francesco Casola, Takashi Taniguchi, Kenji Watanabe, Michael M. Fogler, Philip Kim, Amir Yacoby, & Ronald L. Walsworth. Nature, 583(7817): 537–541. July 2020.
Imaging viscous flow of the Dirac fluid in graphene [link] link   Imaging viscous flow of the Dirac fluid in graphene [pdf] pdf   Imaging viscous flow of the Dirac fluid in graphene [pdf] supplement   doi   link   bibtex   41 downloads  
Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor. H. Zhang, M. J. H. Ku, F. Casola, C. H. R. Du, T. Sar, M. C. Onbasli, C. A. Ross, Y. Tserkovnyak, A. Yacoby, & R. L. Walsworth. Physical Review B, 102(2): 024404. July 2020.
Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor [link] link   Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor [pdf] pdf   doi   link   bibtex   11 downloads