Logan Bishop-Van Horn

Logan Bishop-Van Horn

Technical staff scientist @ MIT Lincoln Laboratory

CV

Available as a PDF here.

Education

Experience (Click to expand)

August 2024 - present: Technical Staff, MIT Lincoln Laboratory
  • Technical Staff in Group 89 working on superconducting devices. Email: Logan.Bishop-VanHorn@ll.mit.edu.
September 2017 - January 2019, January 2021 - June 2024: Graduate Student, Stanford University
January 2019 - January 2021: Research Associate, Quantum Circuits, Inc.
  • Quantum Circuits, Inc. (QCI), New Haven, CT. Supervisors: Harvey Moseley, Rob Schoelkopf.
  • Characterization and modeling of superconducting devices for quantum information processing using qubits encoded in microwave cavities.
  • Deliverables from this period:
    • SeQuencing, an open-source Python package for simulating the dynamics of open quantum systems under realistic pulse sequences.
    • qascade, a (closed-source) Python package for estimating noise photon numbers at all stages of a quantum control microwave signal chain based on measured or simulated RF and thermal properties of microwave components.
Summer 2016: Undergraduate Research Assistant, Cornell University
  • Cornell Center for Materials Research, Cornell University, Ithaca, NY. Advisor: Dan Ralph.
  • Performed RF measurements and micromagnetic modeling of magnetic heterostructures for spintronics.
  • Deliverables from this period:
    • Exploring Low-Frequency ST-FMR: Simulation and Experiment [report, slides]
June 2014 - December 2016: Undergraduate Research Assistant, Clark University
  • Department of Physics, Clark University, Worcester, MA. Advisor: Charles Agosta.
  • Measured the RF penetration depth of unconventional superconductors at high magnetic fields using tunnel diode oscillators.

Skills (Click to expand)

Low temperature and condensed matter physics
  • Cryogenic scanning probe microscopy of quantum materials and devices
  • Electromagnetic modeling of superconducting devices
  • Operation of cryogen-free dilution refrigerators
  • Instrument control and measurement automation
Quantum computing
  • Automating the characterization and calibration of superconducting qubits and cavities
  • Modeling dynamics of open quantum systems (QuTiP, SeQuencing)
  • Dynamical decoupling noise spectroscopy
  • Software and RF electronics for quantum control
Scientific programming
  • Scientific Python (numpy, scipy, matplotlib, pandas, JAX, CuPy, …)
  • MATLAB
  • HFSS, Sonnet, COMSOL
  • Bash, Git, and GitHub
  • Interfacing with HPC (Slurm, Ray, MPI)

Publications

  1. Vortex motion induced losses in tantalum resonators

    Faranak Bahrami, Matthew P. Bland, Nana Shumiya, Ray D. Chang, Elizabeth Hedrick, Russell A. McLellan, Kevin D. Crowley, Aveek Dutta, Logan Bishop-Van Horn, Yusuke Iguchi, Aswin Kumar Anbalagan, Guangming Cheng, Chen Yang, Nan Yao, Andrew L. Walter, Andi M. Barbour, Sarang Gopalakrishnan, Robert J. Cava, Andrew A. Houck, Nathalie P. de Leon, "Vortex motion induced losses in tantalum resonators", Physical Review B 113, 054505 (2026).

  2. Characterization of Two Fast-Turnaround Dry Dilution Refrigerators for Scanning Probe Microscopy

    Mark E. Barber, Yifan Li, Jared Gibson, Jiachen Yu, Zhanzhi Jiang, Yuwen Hu, Zhurun Ji, Nabhanila Nandi, Jesse C. Hoke, Logan Bishop-Van Horn, Gilbert R. Arias, Dale J. Van Harlingen, Kathryn A. Moler, Zhi-Xun Shen, Angela Kou, and Benjamin E. Feldman "Characterization of Two Fast-Turnaround Dry Dilution Refrigerators for Scanning Probe Microscopy", Journal of Low Temperature Physics 215, 1-23 (2024).

  3. Imaging anisotropic vortex dynamics in FeSe

    Irene P. Zhang, Johanna C. Palmstrom, Hilary Noad, Logan Bishop-Van Horn, Yusuke Iguchi, Zheng Cui, Eli Mueller, John R. Kirtley, Ian R. Fisher, and Kathryn A. Moler, "Imaging anisotropic vortex dynamics in FeSe", Phys. Rev. B 100, 024514 (2019).

Talks

Teaching