### Principal Investigators

#### Paul J. Steinhardt

Albert Einstein Professor in Science at Princeton University and Director of the Princeton Center for Theoretical Science. His research spans problems in particle physics, astrophysics, cosmology and condensed matter physics. He is one of the architects of the inflationary theory. More recently, he proposed the "ekpyrotic model" of the universe, a radical alternative to big bang/inflationary cosmology.

#### Frans Pretorius

Professor of Physics at Princeton University. His main research area is general relativity. He uses numerical solution methods to study the dynamical strong-field regime of the theory, including gravitational-wave sources, gravitational collapse, black holes, cosmological singularities, and gravity in higher dimensions.

#### Anna Ijjas

Research Associate at Harvard University. Her interest is theoretical cosmology. She uses the tools of both general relativity and quantum field theory to study different models of the very early universe with the aim of ultimately developing an improved cosmology that provides an explanation of current observational data.

### Associates

#### V. (Slava) Mukhanov

Professor of Physics at Ludwig-Maximilians University. His research interests include inflationary and bouncing models of the early universe, cosmic microwave background fluctuations, dark energy, quantum and classical black holes, and quantum cosmology.

#### David Garfinkle

Professor of Physics at Oakland University. His research is in numerical relativity: the use of computer simulations to study the properties of singularities, critical gravitational collapse, cosmic censorship, and the evolution of inhomogeneities in the early universe.

### Postdoctoral Fellows

#### William Cook

Princeton University

2018-2021

### Graduate Students

#### Roman Kolevatov

Second-year graduate student at Princeton University.

#### Nick Sukhov

Second-year graduate student at Princeton University.