On the possibility of non-geodesic motion of massless spinning tops

被引：8

作者：

Armaza, Cristobal ^{[1
]}

Hojman, Sergio A. ^{[2
,3
,4
]}

Koch, Benjamin ^{[1
]}

Zalaquett, Nicolas ^{[1
]}

机构：

[1] Pontificia Univ Catolica Chile, Inst Fis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile

[2] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Fac Artes Liberales, Dept Ciencias, Santiago, Chile

[3] Univ Chile, Fac Ciencias, Dept Fis, Santiago, Chile

[4] CREA, Santiago, Chile

来源：

CLASSICAL AND QUANTUM GRAVITY | 2016年 / 33卷 / 14期

关键词：

trajectory; massless; spin; curved spacetime; POLE-DIPOLE MODEL; CHARGED-PARTICLE; TEST FIELD; PRECESSION; SPACETIME; PROPAGATION; TORSION;

D O I：

10.1088/0264-9381/33/14/145011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The motion of spinning massless particles in gravitationally curved backgrounds is revisited by considering new types of constraints. Those constraints guarantee zero mass (P mu P mu = 0) and they allow for the possibility of trajectories which are not simply null geodesics. To exemplify this previously unknown possibility, the equations of motion are solved for radial motion in Schwarzschild background. It is found that the particle experiences a spin-induced energy shift, which is proportional to the Hawking temperature of the black hole background.

引用

页数：18

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