@article{d355a195f86a497c9c86c250992a034c,
title = "Evidence for dark energy from the cosmic microwave background alone using the atacama cosmology telescope lensing measurements",
abstract = "For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w=-1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power spectrum from the Atacama Cosmology Telescope with temperature and polarization power spectra from the Wilkinson Microwave Anisotropy Probe. The lensing data break the geometric degeneracy of different cosmological models with similar CMB temperature power spectra. Our CMB-only measurement of the dark energy density ΩΛ confirms other measurements from supernovae, galaxy clusters, and baryon acoustic oscillations, and demonstrates the power of CMB lensing as a new cosmological tool.",
author = "Sherwin, {Blake D.} and Joanna Dunkley and Sudeep Das and Appel, {John W.} and Bond, {J. Richard} and Carvalho, {C. Sofia} and Devlin, {Mark J.} and Rolando D{\"u}nner and Thomas Essinger-Hileman and Fowler, {Joseph W.} and Amir Hajian and Mark Halpern and Matthew Hasselfield and Hincks, {Adam D.} and Ren{\'e}e Hlozek and Hughes, {John P.} and Irwin, {Kent D.} and Jeff Klein and Arthur Kosowsky and Marriage, {Tobias A.} and Danica Marsden and Kavilan Moodley and Felipe Menanteau and Niemack, {Michael D.} and Nolta, {Michael R.} and Page, {Lyman A.} and Lucas Parker and Reese, {Erik D.} and Schmitt, {Benjamin L.} and Neelima Sehgal and Jon Sievers and Spergel, {David N.} and Staggs, {Suzanne T.} and Swetz, {Daniel S.} and Switzer, {Eric R.} and Robert Thornton and Katerina Visnjic and Ed Wollack",
year = "2011",
month = jul,
day = "5",
doi = "10.1103/PhysRevLett.107.021302",
language = "English (US)",
volume = "107",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "2",
}