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Search for weakly interacting sub-eV particles with the OSQAR laser-based experiment: results and perspectives |
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| Authors: | Pugnat P Ballou R Schott M Husek T Sulc M Deferne G Duvillaret L Finger M Finger M Flekova L Hosek J Jary V Jost R Kral M Kunc S Macuchova K Meissner K A Morville J Romanini D Siemko A Slunecka M Vitrant G Zicha J |
| Institution: | 1.School of Physics, Nankai University, Tianjin, 300071, China ;2.School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, China ; |
| Abstract: | Recent Planck measurements show some CMB anomalies on large angular scales, which confirms the early observations by WMAP. We show that an inflationary model, in which before the slow-roll inflation the Universe is in a superinflationary phase, can generate a large-scale cutoff in the primordial power spectrum, which may account for not only the power suppression on large angular scales, but also a large dipole power asymmetry in the CMB. We discuss an implementation of our model in string theory. |
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