Rotation of the CMB polarization by foreground lensing

被引：7

作者：

Di Dio, Enea ^{[1
,2
,3
]}

Durrer, Ruth ^{[4
,5
]}

Fanizza, Giuseppe ^{[6
]}

Marozzi, Giovanni ^{[6
,7
]}

机构：

[1] Lawrence Berkeley Natl Lab, Div Phys, Cyclotron Rd, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Univ Geneva, Dept Phys Theor, 24 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland

[5] Univ Geneva, CAP, 24 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland

[6] Ist Nazl Fis Nucl, Sez Pisa, Largo B Pontecorvo 3, I-56127 Pisa, Italy

[7] Univ Pisa, Dipartimento Fis, Largo B Pontecorvo 3, I-56127 Pisa, Italy

来源：

PHYSICAL REVIEW D | 2019年 / 100卷 / 04期

基金：

瑞士国家科学基金会;

关键词：

PERTURBATIONS;

D O I：

10.1103/PhysRevD.100.043508

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the weak lensing corrections to the CMB polarization anisotropies. We concentrate on the effect of rotation and show that the rotation of polarization is a true physical effect which has to be taken into account at second order in perturbation theory. We clarify inconsistencies on the treatment of this rotation in the recent literature. We also show that at first order in perturbation theory there is no rotation of polarization also for vector and tensor modes.

引用

页数：16

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