Inflation Physics from the Cosmic Microwave Background and Large Scale Structure
Abstract
Fluctuations in the intensity and polarization of the cosmic microwave background (CMB) and the large-scale distribution of matter in the universe each contain clues about the nature of the earliest moments of time. The next generation of CMB and large-scale structure (LSS) experiments are poised to test the leading paradigm for these earliest moments---the theory of cosmic inflation---and to detect the imprints of the inflationary epoch, thereby dramatically increasing our understanding of fundamental physics and the early universe. A future CMB experiment with sufficient angular resolution and frequency coverage that surveys at least 1% of the sky to a depth of 1 uK-arcmin can deliver a constraint on the tensor-to-scalar ratio that will either result in a 5-sigma measurement of the energy scale of inflation or rule out all large-field inflation models, even in the presence of foregrounds and the gravitational lensing B-mode signal. LSS experiments, particularly spectroscopic surveys such as the Dark Energy Spectroscopic Instrument, will complement the CMB effort by improving current constraints on running of the spectral index by up to a factor of four, improving constraints on curvature by a factor of ten, and providing non-Gaussianity constraints that are competitive with the current CMB bounds.
Cite
@article{arxiv.1309.5381,
title = {Inflation Physics from the Cosmic Microwave Background and Large Scale Structure},
author = {K. N. Abazajian and K. Arnold and J. Austermann and B. A. Benson and C. Bischoff and J. Bock and J. R. Bond and J. Borrill and I. Buder and D. L. Burke and E. Calabrese and J. E. Carlstrom and C. S. Carvalho and C. L. Chang and H. C. Chiang and S. Church and A. Cooray and T. M. Crawford and B. P. Crill and K. S. Dawson and S. Das and M. J. Devlin and M. Dobbs and S. Dodelson and O. Doré and J. Dunkley and J. L. Feng and A. Fraisse and J. Gallicchio and S. B. Giddings and D. Green and N. W. Halverson and S. Hanany and D. Hanson and S. R. Hildebrandt and A. Hincks and R. Hlozek and G. Holder and W. L. Holzapfel and K. Honscheid and G. Horowitz and W. Hu and J. Hubmayr and K. Irwin and M. Jackson and W. C. Jones and R. Kallosh and M. Kamionkowski and B. Keating and R. Keisler and W. Kinney and L. Knox and E. Komatsu and J. Kovac and C. -L. Kuo and A. Kusaka and C. Lawrence and A. T. Lee and E. Leitch and A. Linde and E. Linder and P. Lubin and J. Maldacena and E. Martinec and J. McMahon and A. Miller and V. Mukhanov and L. Newburgh and M. D. Niemack and H. Nguyen and H. T. Nguyen and L. Page and C. Pryke and C. L. Reichardt and J. E. Ruhl and N. Sehgal and U. Seljak and L. Senatore and J. Sievers and E. Silverstein and A. Slosar and K. M. Smith and D. Spergel and S. T. Staggs and A. Stark and R. Stompor and A. G. Vieregg and G. Wang and S. Watson and E. J. Wollack and W. L. K. Wu and K. W. Yoon and O. Zahn and M. Zaldarriaga},
journal= {arXiv preprint arXiv:1309.5381},
year = {2016}
}
Comments
Report from the "Dark Energy and CMB" working group for the American Physical Society's Division of Particles and Fields long-term planning exercise ("Snowmass"). Current version matches what will appear in the Snowmass 2013 issue of Astroparticle Physics