Testing CPT symmetry with CMB measurements | |
Xia JQ(夏俊卿)![]() ![]() ![]() ![]() ![]() | |
2008 | |
Source Publication | ASTRONOMY & ASTROPHYSICS
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Volume | 483Issue:3Pages:715-718 |
Corresponding Author | [Xia, J. -Q. ; Zhang, X.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, H.] Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China ; [Wang, X.] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany |
Subtype | Article |
Abstract | Aims. We study the possibility of testing Charge-Parity-Time Reversal symmetry (CPT) with cosmic microwave background (CMB) measurements. Methods. Working with an effective lagrangian of the photon with CPT violation L similar to p(mu)A(nu)(F) over tilde (mu nu), which causes the polarization vectors of the propagating CMB photons to be rotated, we determine the rotation angle. a using the BOOMERanG 2003 and the WMAP3 angular power spectra. Results. In this analysis, we have included the newly-released TC and GC (l < 450) information of WMAP3 and found Delta alpha = - 6.2 +/- 3.8 deg at a 68% confidence level. Conclusions. This result slightly increases the significance for the CPT violation obtained in our previous paper (Feng et al. 2006). Delta alpha = - 6.0 +/- 4.0 deg (1 sigma). Furthermore, we examine the constraint on the rotation angle from the simulated polarization data with Planck precision. Our results show that the future Planck measurement will be sensitive to. a at the level of 0.057 deg and will be able to test the CPT symmetry with a higher precision. |
Keyword | cosmology : theory cosmology : cosmic microwave background cosmology : cosmological parameters |
Subject Area | Astronomy & Astrophysics |
DOI | 10.1051/0004-6361:200809410 |
URL | 查看原文 |
Indexed By | INSPIREHEP |
Language | 英语 |
WOS Research Area | Astronomy & Astrophysics |
WOS Subject | Astronomy & Astrophysics |
WOS ID | WOS:000255953100009 |
inspireid | 764546 |
inspireURL | https://inspirehep.net/literature/764546 |
Citation statistics |
Cited Times:70 [INSPIRE]
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Document Type | 期刊论文 |
Identifier | http://ir.ihep.ac.cn/handle/311005/238331 |
Collection | 理论物理室 实验物理中心 粒子天体物理中心 中国科学院高能物理研究所_中国散裂中子源 |
Affiliation | 中国科学院高能物理研究所 |
First Author Affilication | Institute of High Energy |
Recommended Citation GB/T 7714 | Xia JQ,Xia, JQ,Li, H,et al. Testing CPT symmetry with CMB measurements[J]. ASTRONOMY & ASTROPHYSICS,2008,483(3):715-718. |
APA | 夏俊卿,Xia, JQ,Li, H,Wang, X,&Zhang, X.(2008).Testing CPT symmetry with CMB measurements.ASTRONOMY & ASTROPHYSICS,483(3),715-718. |
MLA | 夏俊卿,et al."Testing CPT symmetry with CMB measurements".ASTRONOMY & ASTROPHYSICS 483.3(2008):715-718. |
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