Testing special relativity using slow light

Varcoe, Benjamin (2006) Testing special relativity using slow light. Contemporary Physics, 47 (1). pp. 25-32. ISSN 0010-7514

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Violations of Lorentz invariance in the form of a frame dependence of the speed of light is forbidden by most of modern physics. However, this law is increasingly coming under pressure from theories such as string theory and theories of quantum gravity, which predict violations of Lorentz invariance at some level. This paper presents a concept for a Lorentz invariance test using electromagnetically induced transparency, which, in combination with an effect known as Fresnel drag, can amplify the effect of variations of the speed of light. It is shown how a model apparatus could, in principle, be used to search for frame dependencies in the speed of light to a sensitivity of a part in 10 21 . It is shown that, counter-intuitively, in testing relativistic time dilation, the speed of the particle is not the most important feature and that the test can be performed for relatively small velocities.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: EPrints Services
Date Deposited: 06 Feb 2012 19:03
Last Modified: 18 Jul 2012 09:25
URI: http://srodev.sussex.ac.uk/id/eprint/19182
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