Paul J. Steinhardt
Director, Center for Theoretical Science &
Professor of Physics
Princeton University
Princeton, NJ 08544-0708
Photo, Biographical Sketch, C.V.:
Click
HERE
Office: Jadwin 214
1-609-258-1509
steinh@princeton.edu
The Cyclic Universe
Image from Astronomy Magazine, April 2009
See Movie Version
For a popular introduction to the
Cyclic and Inflationary Universe:
Dark Energy & the Return of the Phoenix Universe
Dark Energy, Inflation and Accelerated Expansion
-
(New challenges for combining dark energy and inflation with extra dimensions)
A New Approach to Testing Inflation
Non-gaussianity: A New Prediction of the Cyclic Model
Why the cosmological constant is small and positive
The Cyclic Universe Simplified
(brief introduction for students)
Answers to Frequently Asked Questions about Cyclic Models
Cyclocosmos: A Poem by Bill Robinson
(a poetic rendition of the cyclic model)
New Approach for Resolving the Cosmological Singularity and the Big Crunch/Big Bang Transition
A Cyclic Model of the Universe (the original SCIENCE paper)
Cosmic Evolution in a Cyclic Universe (a full technical discussion)
Cosmological Perturbations: Myths and Facts
(addresses common myths about inflation and scale-invariant
perturbations)
Cosmological Perturbations in a Big Bang/Big Crunch Cosmology
A general relativistic treatment
tracking cosmological perturbations through a bounce between
branes (highly technical)
with computations that underly
the paper (useful
for checking algebra)
How to Design Cyclic Universe Models
and satisfy all known cosmological constraints
What do Inflation and Cyclic models
REALLY predict for the spectral tilt?
A model independent treatment with
a surprising conclusion.
The Origin of Density Fluctuations in the Cyclic Universe (An Introduction)
A Brief Introduction to the Ekpyrotic Universe
(for the non-scientist)
Note: The Ekpyrotic model
is a precursor to the Cyclic Model
A Quintessential Introduction to Dark Energy
Quintessence?: A technical overview
The Cosmic Triangle and the State of the Universe
A dramatic example of the CMB degeneracy problem
comparing best-fit Lambda (CLOSED) model with best-fit Q model (FLAT): two model curves are virtually indistinguishableStrongly self-interacting dark matter?
Theoretical Cosmology in Jadwin Hall
Discovery of a Natural Quasicrystal
L Bindi, P. Steinhardt, N. Yao and P. Lu
Science 324, 1306 (2009)What are Quasicrystals?
A Brief Pictorial Introduction
(.ppt file to download)) with images of ideal quasicrystal patterns and real quasicrystals
Icosahedral Photonic Quasicrystal and its Brillouin Zone (color)
- Experimental measurement of the photonic properties of icosahedral quasicrystals
W. Man, M. Megans, P.M. Chaikin, and P. Steinhardt
- FAQs
- Images
- Also, see News article from Materials Today:
Quasicrystals step out of the shadows
The Oldest Quasicrystal Tiling?
Decagonal and Quasi-Crystalline
Tilings in Medieval Islamic ArchitectureP. Lu and P. Steinhardt
Quasi-Unit Cell Paradigm for the Structure of Quasicrystals
