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

Cristóbal Armaza; Sergio A. Hojman; Benjamin Koch; Nicolás Zalaquett

doi:10.1088/0264-9381/33/14/145011

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

Cristóbal Armaza, Sergio A. Hojman, Benjamin Koch, Nicolás Zalaquett

Faculty of Liberal Arts

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The motion of spinning massless particles in gravitationally curved backgrounds is revisited by considering new types of constraints. Those constraints guarantee zero mass (P_μP^μ=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.

Original language	English
Article number	145011
Journal	Classical and Quantum Gravity
Volume	33
Issue number	14
DOIs	https://doi.org/10.1088/0264-9381/33/14/145011
State	Published - 23 Jun 2016

Keywords

curved spacetime
massless
spin
trajectory

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10.1088/0264-9381/33/14/145011

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abstract = "The motion of spinning massless particles in gravitationally curved backgrounds is revisited by considering new types of constraints. Those constraints guarantee zero mass (PμPμ=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.",

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AU - Koch, Benjamin

AU - Zalaquett, Nicolás

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KW - trajectory

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

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Keywords

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