Josh Long

Josh Long is a Professor of Physics at the University of Illinois at Urbana-Champaign, affiliated with the Department of Physics within the Grainger College of Engineering. His academic journey includes a B.A. from Amherst College (1989) and a Ph.D. from Johns Hopkins University (1998). He has held roles including Postdoctoral Associate at the University of Colorado, Boulder; Staff Scientist at Los Alamos National Laboratory; and faculty positions at Indiana University, Bloomington (2005–2022). His research focuses on experimental tests of fundamental symmetries, short-range gravitational forces, and searches for axion-like particles. Key projects include the neutron Electric Dipole Moment (nEDM) experiment at Oak Ridge and the ARIADNE collaboration investigating exotic spin-coupled forces. He teaches courses like PHYS 211 – University Physics: Mechanics.

Education:

• B.A. in Physics, Amherst College, 1989
• Ph.D. in Physics, Johns Hopkins University, 1998

Research Interests: His work combines precision measurements in nuclear physics with gravitational experiments. He explores time-reversal symmetry through the nEDM project and tests Lorentz invariance via submillimeter-range force measurements. The ARIADNE experiment, leveraging cryogenic helium-3, seeks axion-mediated forces. His experiments often integrate advanced cryogenics and precision instrumentation.

Collaborations & Projects:

• Leading cryogenic systems for the nEDM experiment at Oak Ridge
• Designing short-range inverse-square law (ISL) tests at UIUC
• Pioneering spin-coupled force experiments with polarized materials
• Co-leading the ARIADNE collaboration with 20+ institutions

Teaching & Mentoring: Prof. Long offers graduate and undergraduate research opportunities in experimental physics, emphasizing hands-on experience in cryogenics, low-noise electronics, and data analysis.