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Ronald Walsworth


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  • Photo of a diamond chip NV experiment

    Diamonds Are a Quantum Sensing Scientist’s Best Friend

    October 11, 2021

    We all know that diamonds can hold great sentimental (and monetary) value. As luck may have it, diamonds—particularly defective ones, with little errors in their crystal structure—also hold great scientific value. The defects have properties that can only be described by quantum mechanics, and researchers are working on harnessing these properties to pick up on tiny signals coming from individual biological cells.

  • A colorful computer-generated map of the electrical current in a graphene channel that makes a sharp turn.

    Diamonds Shine a Light on Hidden Currents in Graphene

    July 22, 2020

    JQI group uses diamond-based quantum sensors produce images of currents in graphene.

  • JQI welcomes four newest Fellows

    September 10, 2019

    JQI has named four new Fellows in 2019, bringing the total number to 35. All four of the new arrivals have appointments in the Department of Physics at the University of Maryland. One Fellow is also a professor in the Department of Electrical and Computer Engineering at UMD and another is a physicist at the National Institute of Standards and Technology (NIST).