Gupta-Bleuler quantization of optical fibers in weak gravitational fields

Abstract

The theory of gauge-fixed Maxwell equations in linear isotropic dielectrics is developed using a generalisation of the standard $R_{\xi }$ gauge-fixing term. In static space-times, the theory can be quantised using the Gupta-Bleuler method, which is worked out explicitly for optical fibres either in flat space-time or at a constant gravitational potential. This yields a consistent first-principles description of gravitational fibre-optic interferometry at the single-photon level within the framework of quantum field theory in curved space-times.

22 pages, 5 figures

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Cited by in corpus (4)

• Experimental Observation of Earth's Rotation with Quantum Entanglement
• Polarization transport in optical fibers beyond Rytov's law
• Fiber optics in curved space-times
• Quantum interferometry in external gravitational fields