No chiral light bending by clumps of axion-like particles

被引：14

作者：

Blas, Diego ^{[1
]}

Caputo, Andrea ^{[2
,3
]}

Ivanov, Mikhail M. ^{[4
,5
]}

Sberna, Laura ^{[6
]}

机构：

[1] Kings Coll London, Dept Phys, Theoret Particle Phys & Cosmol Grp, London WC2R 2LS, England

[2] Univ Valencia, Inst Fis Corpuscular, Edificio Inst Invest,Catedrat Jose Beltran 2, Paterna 46980, Spain

[3] CSIC, Edificio Inst Invest,Catedrat Jose Beltran 2, Paterna 46980, Spain

[4] NYU, Dept Phys, Ctr Cosmol & Particle Phys, 4 Washington Pl, New York, NY 10003 USA

[5] Russian Acad Sci, Inst Nucl Res, 60th October Anniversary Prospect,7a, Moscow 117312, Russia

[6] Perimeter Inst, 31 Caroline St N, Waterloo, ON, Canada

来源：

PHYSICS OF THE DARK UNIVERSE | 2020年 / 27卷

基金：

俄罗斯科学基金会; 欧盟地平线“2020”;

关键词：

DARK-MATTER; CP CONSERVATION; POLARIZATION; SEARCH;

D O I：

10.1016/j.dark.2019.100428

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the propagation of light in the presence of a parity-violating coupling between photons and axion-like particles (ALPs). Naively, this interaction could lead to a split of light rays into two separate beams of different polarization chirality and with different refraction angles. However, by using the eikonal method we explicitly show that this is not the case and that ALP clumps do not produce any spatial birefringence. This happens due to non-trivial variations of the photon's frequency and wavevector, which absorb time-derivatives and gradients of the ALP field. We argue that these variations represent a new way to probe the ALP-photon coupling with precision frequency measurements. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：4

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