Paul Steinhardt is the Albert Einstein Professor in Science and Professor of Physics, on the faculty of both the Departments of Physics and Astrophysical Sciences at Princeton University, Princeton, USA.
Professor Paul J. Steinhardt is a leader in theoretical cosmology. His research span problems in cosmology, astrophysics, particle physics and condensed matter physics. In cosmology, my work has focused on issues at the interface between fundamental physics and astrophysics. The mechanisms for driving inflationary expansion in the early universe, the connection between inflation and elementary particles, and the observational consequences of inflation are subjects of longstanding interest.
He is one of the leading theorists responsible for inflationary theory. He constructed the first workable model of inflation and the theory of how inflation could produce seeds for galaxy formation. He was also among the first to show evidence for dark energy and cosmic acceleration, introducing the term "quintessence" to refer to dynamical forms of dark energy. Neil Turok pioneered mathematical and computational techniques which decisively disproved rival theories of structure formation such as cosmic strings. He made leading contributions to inflationary theory and to our understanding of the origin of the matter-antimatter asymmetry in the Universe. Hence, the authors not only witnessed but also led firsthand the revolutionary developments in the standard cosmological model caused by the fusion of particle physics and cosmology in the last 20 years.
2002 Dirac Medal and Prize, with Alan Guth and Andrei Linde, for the development of the concept of inflation in cosmology. Although the history of the very early universe has not been firmly established, the idea of inflation has already had notable observational successes, and it has become the paradigm for fundamental studies in cosmology.
"Observational evidence for self-interacting cold dark matter," D.N. Spergel and P.J. Steinhardt, astro-ph/9909386
"The Cosmic Triangle: Revealing the State of the Universe," N. Bahcall, J.P. Ostriker, S. Perlmutter, and P. J. Steinhardt, Science 284, 1481-1488, (1999).
"Quintessence, Cosmic Coincidence, and the Cosmological Constant," P. J. Steinhardt, I. Zlatev, L. Wang, Phys. Rev. Lett. 82, 896-899 (1999).
"Experimental verification of the quasi-unit-cell model of quasicrystal structure," P.J. Steinhardt, H.-C. Jeong, K. Saitoh, M. Tanaka, E. Abe, and A.P. Tsai, Nature 396, 55-57 (1998).
"On the Problem of Predicting Inflationary Perturbations," L. Wang, V.F. Mukhanov, and P.J. Steinhardt, Phys. Lett. B 414, 18-27 (1997).