University of Maryland

Interview with Ellen D. Williams, Director of the Earth System Science Interdisciplinary Center and Distinguished University Professor at the University of Maryland. Williams recounts her childhood in Michigan, and the benefits that she enjoyed growing up during the height of the U.S. car manufacturing era. She discusses her undergraduate education at Michigan State where she developed an interest in physical chemistry and become involved in women’s rights issues. Williams explains her decision to attend Caltech for graduate school, where she conducted thesis research on the statistical mechanics of surfaces using electron diffraction. She describes the opportunities leading to her appointment in physics and astronomy at Maryland, and she explains the transition from chemistry to a physics department, which was smoothed by the fact that her research focused on phase transitions and critical phenomena. Williams describes achieving tenure and her work within the Institute for Physical Science and Technology. She explains her research in scanning tunneling microscopes and nanotechnologies, and her increasing fluency in working with government funding agencies. Williams explains her decision to join BP as chief scientist where she was involved in fostering BP’s commitment to sustainability, and she describes Ernest Moniz’s offer for her to direct ARPA-E at DOE during the second term of the Obama administration. She conveys her enjoyment working in such a focused manner on clean energy in this role and her contributions to the Paris Climate Accord. Williams describes returning to Maryland and explains the most efficacious way of teaching students about both the science and policy implications of climate change. At the end of the interview, Williams discusses her work as director of the Earth Systems Science Interdisciplinary Center and the ongoing governmental collaborations this position allows, and she offers optimism that we have both the technological and political tools to mitigate climate change effectively.

Interview with Christopher Monroe, Gilhuly Family Distinguished Presidential Professor of Physics and Electrical Computer Engineering at Duke University. Monroe discusses his ongoing affiliation with the University of Maryland, and his position as chief scientist and co-founder of IonQ. He discusses the competition to achieve true quantum computing, and what it will look like without yet knowing what the applications will be. Monroe discusses his childhood in suburban Detroit and his decision to go to MIT for college, where he focused on systems engineering and electronic circuits. He explains his decision to pursue atomic physics at the University of Colorado to work under the direction of Carl Wieman on collecting cold atoms from a vapor cell, which he describes as a “zig zag” path to Bose condensation. Monroe discusses his postdoctoral research at NIST where he learned ion trap techniques from Dave Wineland and where he worked with Eric Cornell. He explains how he became interested in quantum computing from this research and why quantum computing’s gestation period is stretching into its third decade. Monroe explains his decision to join the faculty at the University of Michigan, where he focused on pulsed lasers for quantum control of atoms. He describes his interest to transfer to UMD partly to be closer to federal entities that were supporting quantum research and to become involved in the Joint Quantum Institute. Monroe explains the value of quantum computing to encryption and intelligence work, he describes the “architecture” of quantum computing, and he narrates the origins of IonQ and the nature of venture capitalism. He discusses China’s role in advancing quantum computing, and he describes preparations for IonQ to go public in the summer of 2021. At the end of the interview, Monroe discusses the focus of the Duke Quantum Center, and he asserts that no matter how impressive quantum computing can become, computer simulation can never replace observation of the natural world.

Interview with Ana Maria Rey, Professor Adjoint at the University of Colorado at Boulder, and a fellow at NIST and JILA. Rey describes the nature of this tri-appointment, and she discusses some of the difficulties in keeping up her research during the pandemic. She recounts her childhood in Colombia and her early education in an all-girls school and her undergraduate education at the University of Los Andes in physics and the opportunities leading to her acceptance to the University of Maryland for graduate school. Rey describes joining Charles Clark’s group that was focused on modeling ultra-cold atoms, and she explains her initial work at NIST.  She explains her decision to take an initial postdoctoral position at NIST before joining ITAMP at Harvard, where she focused on developing improved models to study the behavior of atoms trapped in crystals of light. Rey describes the opportunities that led to her appointments in Colorado, and her subsequent interests in metrology, the quantum advantage, and trapping molecules. She explains how it felt to be named a MacArthur Fellow and why it is important for her to interact with experimentalists in the quest to build better atomic clocks. Rey explains her efforts to create dark matter detectors and how she hopes that her work on quantum matter will help bring about quantum computers.  She provides her perspective on how to advance diversity and inclusivity in the field, and she delineates her research interests as they pertain to basic science and applications. At the end of the interview, Rey conveys optimism that her research will make advances to the broader understanding of the quantum world.

In this interview, David Zierler, Oral Historian for AIP, interviews Charles Bennett, Bloomberg Distinguished Professor in the Department of Physics and Astronomy and in the Applied Physics Laboratory at the Johns Hopkins University. He recounts his childhood in suburban Washington, D.C., and he describes the influence of his father, who was a physicist with the National Bureau of Standards. He describes his early interests in radio waves and telescopes. He describes his decision to attend the University of Maryland on the basis of its excellent reputation in radio astronomy, and he discusses his interests in instrumentation and his work at the Clark Lake Radio Observatory. Bennett describes the circumstances regarding his decision to attend MIT for graduate school, where he worked with Bernie Burke on analyzing radio observatory data. He discusses his career at Goddard at NASA and his involvement in some of the major missions of the time, including COBE and WMAP. Bennett describes his decision to join the faculty at Hopkins, and the ways in which his research changed in an academic setting. He discusses his current interest in the Hubble constant measurement and the importance in conveying scientific concepts to the broader public. At the end of the interview, Bennett shares his thoughts on how the scientific community can continue to progress in areas relating to diversity and inclusivity in the field, and he relates that his sense of wonder at what can be learned by looking at the universe remains much the same as when he was a boy.