Harvard University

Interview with James David Litster, Professor Emeritus at MIT. Litster recounts his childhood in Toronto, then Edmonton and back to Toronto for high school. He explains the importance of Sputnik both on his interests and for the support of science generally, and he describes his undergraduate education in engineering physics at McMaster University. Litster describes his graduate work at MIT, where he focused on experimental solid-state physics working under the direction of George Benedek. He explains his contributions to phase transition research, and he explains the opportunities leading to his postdoctoral research and faculty appointment at MIT. Litster describes his entrée into the world of liquid crystals and Landau theory working with de Gennes in Paris. He explains the origins of the joint MIT-Harvard Health Science and Technology program and he describes some of his scientific and administrative achievements at Vice President for Research at MIT and as a member of the MIT Nuclear Reactor Safeguards Committee. At the end of the interview, Litster reflects on some of the major advances that have been achieved in condensed matter physics over the course of his career, and how much more interdisciplinary science generally has become.

Interview with Peter Galison, Joseph Pellegrino University Professor at Harvard. Galison describes his numerous and overlapping appointments across Harvard, which allow him to teach in both Physics and History of Science, as well as the Philosophy and Art, Film, and Visual Studies Departments. He recounts his upbringing in Manhattan and a formative year he spent in Paris doing plasma physics before enrolling at Harvard as an undergraduate. Galison talks about the impact of the course Math 55 and why early on he knew he wanted to pursue a course of study that combined science with the arts, which ultimately coalesced into a course of study on history of science with a focus on physics. He describes the intellectual influence of Clifford Geertz and his anti-Vietnam war activism at Harvard, and he conveys the excitement surrounding fundamental discoveries in particle physics in the late 1960s and early 1970s. Galison discusses his postgraduate year at Cambridge where he worked on the philosophy of relativistic quantum mechanics, and he explains his decision to return to Harvard for his thesis work. He discusses his entrance into the Harvard Society of Fellows with the support of Steve Weinberg and Ed Purcell, and he explains how his interests in the unified field theories of Weinberg-Salam-Glashow informed his dissertation work in physics and history of science. Galison traces the origins of his interest in the duality of Big Science and Small Science and the considerations he faced in choosing between physics and history of science for his postdoctoral work. He explains his decision to focus on the latter at Stanford where he joined what would come to be known as the “Stanford School” and how these collaborations informed his book How Experiments End. Galison describes his interest in experimentation as labor history and he discusses his connection to the physics department and to SLAC during his time at Stanford. He discusses the philosophical connotations around the idea that the concept of a multiverse is not science because it is not testable, and he mounts a defense of the future utility of string theory by drawing a distinction between what it demonstrates now against what it will demonstrate with further advance. Galison discusses his contributions to the Black Hole Initiative and the Event Horizon Telescope collaboration, and he surveys the current advances made possible by AI and machine learning. He traces his interest in using film as a medium for scholarly research for its ability to convey a “density” in human interaction that is not achievable in print, and he explains why the notion of government secrecy bridges his interest in physics and social systems. Galison reflects on his own decisions as a graduate student and the lessons he has tried to pass on to his students. At the end of the interview, Galison surveys his current interests, and connects his scholarship as an avenue to understanding the contemporary pandemic, the related challenge of the disconnect of scientific expertise and public policy, and why ultimately science will offer a path out of the crisis.

In this interview, David Zierler, Oral Historian for AIP, interviews Thomas Appelquist, Eugene Higgins Professor of Physics at Yale University. Appelquist recounts his upbringing in rural Iowa and then Indiana, where he attended Catholic high school. He describes his undergraduate experience at Illinois Benedictine College and explains his attraction to attend a small school for college. Appelquist discusses his decision to attend Cornell for his PhD, and recalls that, relative to others in his cohort who went to larger schools, he had the most catching up to do in quantum mechanics. He explains the development of his thesis topic under the direction of Don Yennie, which focused on aspects of renormalization theory using the Feynman parametric approach. Appelquist contextualizes some of the broader questions in quantum field theory and quantum electrodynamics at this time, and he describes the opportunities that led him to SLAC for his postdoctoral research. He describes his interests there as focused on theories of the weak interactions, and he describes his initial faculty appointment at Harvard where he joined the particle theory group led by Shelly Glashow and Sidney Coleman. Appelquist discusses his close collaboration with Helen Quinn on how to renormalize Yang-Mills theories, and he explains his decision to take a tenured position at Yale in consideration of the culture at Harvard, where the prospects of tenure were minimal. He describes the revolutionary discoveries of asymptotic freedom, QCD, and the “November Revolution” at SLAC and Brookhaven at the time. Appelquist describes his research and administrative activities to advance the particle theory group at Yale, and his overall efforts to improve the department as chair and in particular building up the condensed matter theory group. He discusses his tenure as Dean of the Graduate School and his long-term involvement with the Aspen Center. At the end of the interview, Appelquist describes his current interests in lattice gauge theory and explains why he expects that physics will see double beta decay in the next generation of experiments.

Interview with Malcolm Roy Beasley, Sidney and Theodore Rosenberg Professor of Applied Physics, Emeritus, at Stanford. Beasley recounts his passion for basketball in high school and the opportunities that led to his undergraduate study at Cornell, where he describes his focus on engineering physics as just the right blend of fundamental and applied research. He describes his relationship with Watt Webb, who would become his graduate advisor, and the origins of BCS theory. Beasley discusses his work taking magnetization measurements on type-II superconductors and his thesis research on flux creep and resistance. He discusses his postdoctoral appointment working with Mike Tinkham at Harvard and the developments leading to reduced dimensional superconductivity. Beasley explains the technological implications in the fluctuations of the order parameter, and he describes the speed with which Harvard made him a faculty offer. He discusses the circumstances that led to him joining the faculty at Stanford, his immediate connection with Ted Geballe, and his work on A15 superconductors. Beasley explains the significance of the 1976 Applied Superconductivity Conference and the important work in the field coming out of the Soviet Union at the time. He conveys the excitement regarding amorphous silicon and how the KT transition in superconductors became feasible. Beasley describes his interest in thermal fluctuation limits and coupled oscillators, and he describes Aharon Kapitulnik’s arrival at Stanford and the origins of the “KGB” group. He describes the group’s work on alloyed-based model systems and his idea to study high-resistance SNS Josephson junctions. Beasley explains “Pasteur’s quadrant” and why the KGB group was so well-attuned to dealing with it, and he discusses the impact of computational theory on the field and specifically that of Josephson junctions on digital electronics. He surmises what quantum superconductivity might look like, and he describes his work as dean and as founding director of GLAM, and some of the inherent challenges in the “trifurcation” at Stanford between the Departments of Physics and Applied Physics and SLAC. Beasley discusses his leadership at APS and the issue of corporate reform, and he explains his role in the Schön commission and what it taught him about scientific integrity. At the end of the interview, Beasley reflects on some of the “forgotten heroes” in the long history of superconductivity, he attempts to articulate his love for physics, and he explains why the achievements of the KGB group represent more than the sum of its parts.

Interview with Lynwood Randolph, physicist and former space program administrator at NASA. Randolph recounts his childhood in a segregated Richmond and remembers his love for music as well as his introduction to physics in high school. He explains his decision to attend Virginia State University, where he participated in the ROTC program and served in the military upon graduation. After his service, Randolph decided to pursue graduate school and received a National Defense Education Act fellowship to attend Howard University. He explains his focus on experimental work during his graduate studies, pertaining to radiation effects and optical properties of materials. Randolph began a summer job at Harry Diamond Laboratories in DC, where he went on to work for 10 years. Randolph discusses the limitations in the types of jobs available to African Americans at the time, and explains the opportunity at NASA that led him to spend 23 years there. He served in many roles such as Manager for Advanced Concepts in the office of Aeronautics and Space Technology, Chief of the Management Programs Branch, and, later, Information Technology Standards Manager. Randolph reflects on the diversity within NASA over the years and how technology innovations impacted the workplace landscape. He discusses his work with HBCUs and his creation of LES Associates, a consulting company that works in a variety of educational and technological areas. Randolph concludes the interview with reflections on the importance of mentorship and diversity within the field.

Interview with Naomi Ginsberg, Associate Professor of chemistry and physics at University of California, Berkeley and faculty scientist at Lawrence Berkeley Lab. The interview begins with Ginsberg discussing her multidisciplinary background in science and how she prefers not to draw boundaries between research fields. She talks about how the Covid-19 pandemic has affected her research and the science community in general. Then Ginsberg turns to her childhood in Canada and recalls being a curious child with many interests. She describes her undergraduate studies in engineering at the University of Toronto and her summers of research at the Institute for Biodiagnostics, which is where she became seriously interested in physics. Ginsberg discusses pursuing a PhD at Harvard University under Lene Hau, where she worked on ultraslow light in Bose-Einstein condensates and superfluid dynamics. She then talks about wanting to switch gears toward biophysics and choosing to go to LBL for a post-doc in photosynthesis work. Ginsberg describes accepting her current position at Berkeley and the different cultures between the chemistry and physics departments. Towards the end of the interview, she touches on her DARPA grant for research on organic semiconductors, as well as the advances in technology that have informed and shaped her research over the years. Ginsberg looks back on the many grad students she has mentored and points to open-mindedness and confidence as key characteristics for their success.

The interviewee has not given permission for this interview to be shared at this time. Transcripts will be updated as they become available to the public. For any questions about this policy, please contact [email protected].

Interview with Savas Dimopoulos, Professor of Physics at Stanford University. The interview begins with Dimopoulos reflecting on how the pandemic has affected his research, and he gives his initial impressions on the g-2 muon anomaly experiment at Fermilab. He discusses the push and pull between theory and experimentation when searching for physics beyond the Standard Model. Dimopoulos then recounts his early childhood in Turkey, where his family was part of the Greek minority. Due to ethnic tensions, he fled with his family to Athens as refugees. Dimopoulos remembers his early exposure to math and physics and being torn between the two. He describes moving to the US at age 18 for his undergraduate studies at University of Houston. Dimopoulos then recounts his inclination toward theory and his acceptance at University of Chicago to pursue his graduate studies under Yoichiro Nambu. He discusses his post-doctoral appointment at Columbia which then led to an offer from Stanford. He explains his research in baryogenesis and technicolor, as well as his brief time at Harvard with Howard Georgi. Dimopoulos talks about his return to Stanford, his work at CERN, and his research on large extra dimensions with Dvali and Arkani-Hamed. He concludes the interview with predictions for the future of physics beyond the Standard Model.

The interviewee has not given permission for this interview to be shared at this time. Transcripts will be updated as they become available to the public. For any questions about this policy, please contact [email protected].

Interview with Katherine Freese, Director of the Weinberg Institute for Theoretical Physics, the Jeff and Gail Kodosky Endowed Chair in Physics at UT Austin, and the Director of the Texas Center for Cosmology and Astroparticle Physics (TCCAP). Freese begins the interview with an overview of terminology, such as cosmology, astrophysics, and astroparticle physics and the delineation between these fields. Then she describes her childhood in Bethesda, Maryland where both her parents were scientists. Freese recalls beginning college at age 16, starting at MIT and then transferring to Princeton. She recounts taking time off after her undergraduate studies, before deciding to pursue graduate studies. Freese began grad school at Columbia but switched to the University of Chicago to work on neutrino physics with David Schramm. She discusses her first post-doc at Harvard, working on WIMPs and dark matter, and then her second post-doc at Santa Barbara with Frank Wilczek. Freese then recalls returning to MIT as a professor where she worked with Alan Guth and Josh Frieman on cosmic inflation. She talks about her transition to the University of Michigan and the exciting developments in cosmology at the time, as well as her introduction to dark energy. Freese describes her more recent involvement with NASA’s SPIDER experiment, as well as the honor of being named to the National Academy of Sciences. Freese discusses the amazing opportunity of being the Director at the Nordic Institute for Theoretical Physics and ends the interview with her hopes for the future of cosmology, namely her hope for finding dark matter.