David B. Kaplan

David B. Kaplan is an American theoretical physicist noted for contributions to particle physics, nuclear physics, and applications of effective field theory and lattice gauge theory to problems in quantum chromodynamics and beyond the Standard Model. He has held faculty and leadership positions at major research centers and has been active in fostering interdisciplinary collaborations among institutions such as the Institute for Nuclear Theory and national laboratories. His work spans foundational theory, computational methods, and phenomenological models relevant to experiments at facilities like CERN and Brookhaven National Laboratory.

Early life and education

Kaplan was raised in the United States and pursued undergraduate study at the Massachusetts Institute of Technology, where he engaged with programs connected to MIT Department of Physics and mentors associated with research in elementary particle physics. He completed graduate studies at the University of California, Berkeley, earning a Ph.D. under the supervision of Ann Nelson with a dissertation addressing topics in theoretical particle physics and quantum field theory. During his formative years he trained alongside researchers affiliated with institutions such as Lawrence Berkeley National Laboratory, Stanford University, and the Princeton Plasma Physics Laboratory, exposing him to collaborative networks spanning Brookhaven National Laboratory and Fermilab.

Academic career

Kaplan’s early postdoctoral appointments included positions that connected him to research groups at Los Alamos National Laboratory and university departments engaged in high-energy physics and nuclear theory. He joined the faculty of the University of Washington, becoming a prominent member of the Department of Physics and participating in cross-disciplinary programs linked to the Institute for Nuclear Theory at the same university. Kaplan has supervised doctoral students who later joined research efforts at centers such as CERN, SLAC National Accelerator Laboratory, and TRIUMF. He has served on advisory panels for organizations including the National Science Foundation, the Department of Energy, and international committees that coordinate research at facilities like Jefferson Lab and the European Organization for Nuclear Research.

Research contributions

Kaplan has made influential contributions to the development and application of effective field theory techniques to problems in quantum chromodynamics (QCD) and nuclear interactions, building on frameworks related to chiral perturbation theory and techniques used in analyses for Large Hadron Collider phenomenology. He is known for work on lattice formulations of fermions, including innovations connected to domain wall fermions and methods that address chiral symmetry on the lattice, which intersect with research conducted at Brookhaven National Laboratory and Argonne National Laboratory. His research has addressed mechanisms for baryogenesis and models of electroweak symmetry breaking, complementing studies at CERN and proposals linked to physics beyond the Standard Model explored at Fermilab and in theoretical programs at Harvard University.

Kaplan’s publications include studies of nuclear forces using effective theories that connect low-energy observables measured at facilities such as Jefferson Lab to underlying QCD dynamics investigated in lattice simulations at centers like Oak Ridge National Laboratory and Lawrence Livermore National Laboratory. He has collaborated with researchers from institutions including Caltech, Yale University, Columbia University, and Rutgers University on topics spanning neutrino interactions relevant to experiments at Super-Kamiokande and Sudbury Neutrino Observatory as well as dark matter model building related to searches at XENON and LUX-style detectors. His methodological contributions have influenced computational approaches in projects funded by agencies like the Department of Energy and the National Science Foundation.

Awards and honors

Throughout his career Kaplan has received recognitions from academic and national institutions acknowledging his impact on particle physics and nuclear theory. He has been invited to direct programs and workshops at the Institute for Nuclear Theory and to deliver plenary and invited talks at meetings organized by societies such as the American Physical Society and the International Union of Pure and Applied Physics. His work has been supported by grants from agencies including the National Science Foundation and the Department of Energy, and he has held visiting appointments and fellowships at institutions such as CERN, Los Alamos National Laboratory, and the Institute for Advanced Study.

Personal life and outreach

Kaplan has been active in mentoring students and postdoctoral researchers, contributing to educational initiatives at the University of Washington and participating in outreach activities connected to national laboratories and scientific organizations. He has organized workshops and summer schools that brought together participants from institutions such as MIT, Stanford University, University of California, Berkeley, and international centers like DESY and KEK. Outside academia he has engaged with science communication efforts and programs that connect researchers with broader public and policy audiences associated with entities such as the National Academies of Sciences, Engineering, and Medicine and science foundations.

Category:American physicists Category:Theoretical physicists