Quantum and Gravitational Theory

Brandeis has long been at the forefront of theoretical research in classical and quantum gravity, cosmology, quantum field theory, and elementary particle physics. Recent contributions by members of the group include work in fundamental aspects of string theory, applications of string theory to cosmology, the physics and mathematics of realistic four-dimensional string models, supersymmetric Yang-Mills theories, supersymmetry breaking, the quantum theory of supergravity, the quantum mechanics of black holes, lower-dimensional quantum field theories, and topological field theories.

Faculty

Professor Matthew Headrick’s research interests include string theory and related areas of quantum field theory, general relativity, and geometry. He has recently worked on problems involving tachyons in string theory, the deconfinement transition in the AdS/CFT duality, and numerical methods for solving the Einstein equation in the Euclidean context, such as on Calabi-Yau manifolds.

Professor Albion Lawrence’s research includes the mathematics of supersymmetric string compactifications, nonperturbative definitions of string theory, the interface between string theory and observational cosmology, nonperturbative methods in quantum field theory, the quantum mechanics of black holes, the nature of dynamical singularities in gravity (i.e. at the big bang), and qualitative questions of particle physics (such as supersymmetry breaking and axion dynamics) for which an understanding of cosmology and quantum gravity could play a role.

Professor Brian Swingle's research interests revolve around the physics of quantum information, especially in the context of highly controlled many-body systems, quantum field theories, and theories of quantum gravity. His recent work includes a major effort to understand the physics of chaos in quantum systems, and its relationship to information scrambling, black holes, and the flow of time. He has also worked extensively on the entanglement structure of many-body systems and holographic models of quantum gravity, and he has proposed several promising algorithms for use on quantum computers, including potentially near-term quantum computers.

Emeritus Members and History

Emeritus members of the group include: