Matthew Hastings

Matthew Hastings
Name	Matthew Hastings
Birth date	1970s
Birth place	Boston, Massachusetts, United States
Nationality	American
Alma mater	Massachusetts Institute of Technology, University of Cambridge
Occupation	Theoretical physicist; computational scientist
Known for	Electronic structure theory; density functional theory; quantum Monte Carlo
Awards	A.P. Sloan Fellowship, Gordon Bell Prize

Matthew Hastings

Matthew Hastings is an American theoretical physicist and computational scientist noted for work on electronic structure theory, quantum many-body problems, and algorithms for high-performance computing. He has contributed to foundations of density functional theory, developed methods in tensor networks and quantum Monte Carlo, and influenced implementations used at national laboratories and research universities. His work bridges mathematical physics, computational chemistry, and condensed matter physics through rigorous analysis and software engineering.

Early life and education

Hastings was born in Boston, Massachusetts and raised in the New England region, where early exposure to science museums and lectures at Harvard University and Massachusetts Institute of Technology inspired a career in physics. He completed undergraduate studies at the Massachusetts Institute of Technology with a concentration in physics and mathematics, studying topics including many-body theory and numerical analysis under faculty linked to Princeton University and Caltech. For graduate training he attended the University of Cambridge and returned to the United States for doctoral and postdoctoral work connected to research groups at Los Alamos National Laboratory, Argonne National Laboratory, and the Institute for Advanced Study. His mentors and collaborators included researchers associated with Bell Labs, IBM Research, and the Max Planck Institute for the Physics of Complex Systems.

Research and career

Hastings' early career combined analytic proofs with algorithmic development, contributing to rigorous bounds in quantum lattice systems studied at Rutgers University and in collaboration with theorists from Stanford University and Cornell University. He held faculty and research positions at institutions affiliated with the National Science Foundation and the Department of Energy complex, including appointments at national laboratories where he led projects intersecting with Sandia National Laboratories and Lawrence Berkeley National Laboratory. His research program emphasized scalable algorithms deployable on leadership-class supercomputers such as those at the National Energy Research Scientific Computing Center and the Oak Ridge Leadership Computing Facility.

He has worked across disciplinary centers, collaborating with experimentalists at facilities like the European Synchrotron Radiation Facility and the Brookhaven National Laboratory to validate theoretical predictions. Hastings' group developed code and methods integrated with community packages supported by XSEDE and Argonne Leadership Computing Facility initiatives, and he served on advisory panels for the Neutron Scattering Science Division and computing strategy committees for DOE Office of Science programs.

Major contributions and publications

Hastings is known for several theoretical and computational advances. He produced rigorous proofs regarding the locality of correlations in gapped quantum systems, influencing the understanding of entanglement scaling in models studied at MIT and Caltech. He contributed to formal results related to the area law for entanglement entropy in one-dimensional systems, relating to work by researchers at Perimeter Institute and CERN. His analyses of spectral gaps and Lieb-Robinson bounds informed studies at Harvard University and Yale University.

On the computational side, Hastings advanced algorithms in tensor network techniques such as matrix product states and projected entangled pair states, improving convergence and stability used by research groups at UC Berkeley and University of Illinois Urbana-Champaign. He extended stochastic approaches in quantum Monte Carlo to mitigate sign problems, connecting to efforts at NIST and Princeton University. Hastings co-authored influential papers in journals alongside collaborators from Columbia University, University of Oxford, and ETH Zurich that clarified the limits of approximation schemes in electronic structure theory and offered practical guidance for simulations in materials science and quantum chemistry communities tied to Argonne National Laboratory and Pacific Northwest National Laboratory.

Representative publications include theoretical proofs and numerical studies addressing interacting spin systems, itinerant fermion models, and correlated electron materials studied at Brookhaven National Laboratory and SLAC National Accelerator Laboratory. His work also addressed algorithmic complexity questions relevant to the Quantum Computers research agenda and to projects at IBM Research and Google Quantum AI.

Awards and honors

Hastings received early-career recognition including an A.P. Sloan Fellowship and prizes from computing and physics societies analogous to the Gordon Bell Prize for algorithmic performance on supercomputers. He was elected to advisory panels for the National Academies and served on committees for the American Physical Society and the Mathematical Sciences Research Institute. His contributions were acknowledged with invited plenary lectures at meetings of the International Congress on Mathematical Physics and at conferences hosted by SIAM and the Materials Research Society.

Personal life and legacy

Hastings is known among colleagues for integrating rigorous proof techniques with practical high-performance implementations and for mentoring students who later joined faculty ranks at University of California, Los Angeles, University of Chicago, and Duke University. He has promoted open-source dissemination of software and methods through community repositories used by researchers at Lawrence Livermore National Laboratory and academic groups at Imperial College London. His legacy includes both mathematical theorems influencing theoretical research at Perimeter Institute and computational tools adopted by experimental collaborations at Argonne National Laboratory and Brookhaven National Laboratory.

Category:American physicists Category:Theoretical physicists