A consistency relation for the CMB B-mode polarization in the squeezed limit

被引：2
|
作者：
Kehagias, A. [1 ,2 ,3 ]
Dizgah, A. Moradinezhad [1 ,2 ]
Norena, J. [1 ,2 ]
Perrier, H. [1 ,2 ]
Riotto, A. [1 ,2 ]
机构：
[1] Univ Geneva, Dept Theoret Phys, CH-1211 Geneva 4, Switzerland
[2] Ctr Astroparticle Phys, CH-1211 Geneva 4, Switzerland
[3] Natl Tech Univ Athens, Div Phys, Athens 15780, Greece
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2014年 / 10期
基金：
瑞士国家科学基金会;
关键词：
CMBR polarisation; non-gaussianity; CMBR theory; physics of the early universe; LARGE-SCALE STRUCTURE; SYMMETRIES;
D O I：
10.1088/1475-7516/2014/10/011
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A large-scale temperature perturbation has a non-zero correlation with the power spectrum of B-modes of cosmological origin on short scales while the corresponding correlation is expected to be zero for B-modes sourced by galactic foregrounds. We thus compute the squeezed limit of a three-point function in which one correlates the temperature fluctuations at large scales with two polarization modes at small scales. In the particular case of the B-mode polarization we obtain a relation that connects the squeezed limit of the TBB three-point function with the cosmological B-mode power spectrum, which can be used as a consistency relation. This could in principle help to distinguish a primordial signal from that induced by inter-stellar dust.
引用
收藏
页数：17
相关论文
共 50 条
  • [1] B-mode polarization spotted in CMB
    不详
    PHYSICS WORLD, 2013, 26 (09) : 4 - 4
  • [2] Preinflationary genesis with CMB B-mode polarization
    Liu, Zhi-Guo
    Li, Hong
    Piao, Yun-Song
    PHYSICAL REVIEW D, 2014, 90 (08):
  • [3] Establishing the origin of CMB B-mode polarization
    Sheere, Connor
    van Engelen, Alexander
    Meerburg, P. Daniel
    Meyers, Joel
    PHYSICAL REVIEW D, 2017, 96 (06)
  • [4] Birefringence, CMB polarization, and magnetized B-mode
    Giovannini, Massimo
    Kunze, Kerstin E.
    PHYSICAL REVIEW D, 2009, 79 (08):
  • [5] B-mode polarization of the CMB and the cosmic neutrino background
    Mohammadi, Rohoollah
    Khodagholizadeh, Jafar
    Sadegh, M.
    Xue, She-Sheng
    PHYSICAL REVIEW D, 2016, 93 (12)
  • [6] CMB Polarization B-mode Delensing with SPTpol and Herschel
    Manzotti, A.
    Story, K. T.
    Wu, W. L. K.
    Austermann, J. E.
    Beall, J. A.
    Bender, A. N.
    Benson, B. A.
    Bleem, L. E.
    Bock, J. J.
    Carlstrom, J. E.
    Chang, C. L.
    Chiang, H. C.
    Cho, H-M.
    Citron, R.
    Conley, A.
    Crawford, T. M.
    Crites, A. T.
    de Haan, T.
    Dobbs, M. A.
    Dodelson, S.
    Everett, W.
    Gallicchio, J.
    George, E. M.
    Gilbert, A.
    Halverson, N. W.
    Harrington, N.
    Henning, J. W.
    Hilton, G. C.
    Holder, G. P.
    Holzapfel, W. L.
    Hoover, S.
    Hou, Z.
    Hrubes, J. D.
    Huang, N.
    Hubmayr, J.
    Irwin, K. D.
    Keisler, R.
    Knox, L.
    Lee, A. T.
    Leitch, E. M.
    Li, D.
    McMahon, J. J.
    Meyer, S. S.
    Mocanu, L. M.
    Natoli, T.
    Nibarger, J. P.
    Novosad, V.
    Padin, S.
    Pryke, C.
    Reichardt, C. L.
    ASTROPHYSICAL JOURNAL, 2017, 846 (01):
  • [7] Dipolar dark matter and CMB B-mode polarization
    S. Mahmoudi
    M. Haghighat
    S. Al. Modares Vamegh
    R. Mohammadi
    The European Physical Journal C, 2020, 80
  • [8] Dipolar dark matter and CMB B-mode polarization
    Mahmoudi, S.
    Haghighat, M.
    Vamegh, S. Modares
    Mohammadi, R.
    EUROPEAN PHYSICAL JOURNAL C, 2020, 80 (05):
  • [9] Impact of modulation on CMB B-mode polarization experiments
    Brown, Michael L.
    Challinor, Anthony
    North, Chris E.
    Johnson, Bradley R.
    O'Dea, Daniel
    Sutton, David
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 397 (02) : 634 - 656
  • [10] FOREGROUNDS CONTAMINATION IN CMB POLARIZATION DATA: IMPLICATIONS FOR CMB B-MODE POLARIZATION MEASUREMENTS WITH PLANCK
    Stefanescu, P.
    Popa, L. A.
    Vasile, A.
    ROMANIAN REPORTS IN PHYSICS, 2009, 61 (03) : 523 - 530
12345