约束各向同性宇宙双极性
宇宙学与河外天体物理
2025-06-24 v2
摘要
宇宙双极性（CB）是光子线性极化平面在传播期间的旋转。这种效应是标准电磁学扩展的奇偶违背性的探针，若要探测其作为暗物质或暗能量的新宇宙场。已变为惯常使用宇宙微波背景（CMB）极化数据来探测此类现象。最近对Planck和WMAP数据的分析提供了在幅度处约到水平上检测到各向同性CB角的线索。在本工作中，我们探索LiteBIRD在约束此类效应方面的能力，考虑仪器双极性角等更相关的系统效应。我们构建了五个半独立的管道并测试这些管道针对四个不同模拟集，这些模拟集在非理想因素方面呈递增复杂度。所有管道都被证明具有鲁棒性，能够在所考虑的所有情况下返回预期的CB角值。我们发现CB估计的不确定性随着更复杂的模拟而增加。然而，对于考虑仪器双极性角的管道而言，这一趋势不那么显著。对于分析的最复杂的情况，我们发现LiteBIRD将能够在的统计显著性范围内检测到CB角，其显著性范围从到取决于所采用的管道，其中后者不确定性对应于约的总误差预算。
引用
@article{arxiv.2503.22322,
title = {LiteBIRD Science Goals and Forecasts: constraining isotropic cosmic birefringence},
author = {E. de la Hoz and P. Diego-Palazuelos and J. Errard and A. Gruppuso and B. Jost and R. M. Sullivan and M. Bortolami and Y. Chinone and L. T. Hergt and E. Komatsu and Y. Minami and I. Obata and D. Paoletti and D. Scott and P. Vielva and D. Adak and R. Akizawa and A. Anand and J. Aumont and C. Baccigalupi and A. J. Banday and R. B. Barreiro and N. Bartolo and S. Basak and A. Basyrov and M. Bersanelli and T. Brinckmann and F. Cacciotti and E. Calabrese and P. Campeti and E. Carinos and A. Carones and F. Carralot and F. J. Casas and M. Citran and L. Clermont and F. Columbro and G. Coppi and A. Coppolecchia and F. Cuttaia and P. de Bernardis and M. De Lucia and M. De Petris and S. Della Torre and E. Di Giorgi and H. K. Eriksen and E. Ferreira and F. Finelli and C. Franceschet and U. Fuskeland and G. Galloni and M. Galloway and M. Gerbino and M. Gervasi and R. T. Génova-Santos and T. Ghigna and S. Giardiello and C. Gimeno-Amo and E. Gjerløw and M. Hazumi and S. Henrot-Versillé and E. Hivon and H. Ishino and K. Kohri and L. Lamagna and M. Lattanzi and C. Leloup and M. Lembo and F. Levrier and M. López-Caniego and G. Luzzi and E. Martínez-González and S. Masi and S. Matarrese and S. Micheli and M. Migliaccio and M. Monelli and L. Montier and G. Morgante and R. Nagata and T. Namikawa and P. Natoli and A. Occhiuzzi and L. Pagano and A. Paiella and G. Pascual-Cisneros and V. Pavlidou and V. Pelgrims and F. Piacentini and G. Piccirilli and G. Polenta and L. Porcelli and N. Raffuzzi and M. Remazeilles and A. Ritacco and A. Rizzieri and J. A. Rubiño-Martín and M. Ruiz-Granda and Y. Sakurai and J. Sanghavi and M. Shiraishi and S. L. Stever and Y. Takase and K. Tassis and L. Terenzi and M. Tomasi and M. Tristram and L. Vacher and B. van Tent and D. Watts and I. K. Wehus and G. Weymann-Despres and B. Winter and E. J. Wollack and Y. Zhou},
journal= {arXiv preprint arXiv:2503.22322},
year = {2025}
}
备注
56 pages, 22 figures. Accepted for publication in JCAP