Evanescent gravitational waves

被引:19
|
作者
Golat, Sebastian [1 ]
Lim, Eugene A. [1 ]
Rodriguez-Fortuno, Francisco J. [1 ]
机构
[1] Kings Coll London, Dept Phys, London WC2R 2LS, England
基金
欧洲研究理事会;
关键词
SPIN-ORBIT INTERACTION; MOMENTUM; GUIDE;
D O I
10.1103/PhysRevD.101.084046
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We describe the properties of evanescent gravitational waves (EGWs)-wave solutions of Einstein equations which decay exponentially in some direction while propagating in another. Evanescent waves are well known in acoustics and optics and have recently received much attention due to their extraordinary properties such as their transverse spin and spin-momentum locking. We show that EGWs possess similarly remarkable properties, carrying transverse spin angular momenta and driving freely falling test masses along in elliptical trajectories. Hence, test masses on a plane transverse to the direction of propagation exhibit correlated vector and scalarlike deformation-correlations which can be used to distinguish it from modified gravity. We demonstrate that EGWs are present and dominant in the vicinity of subwavelength sources such as orbiting binaries.
引用
收藏
页数:13
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