Photonic entanglement with accelerated light

TL;DR

This paper investigates how accelerated light, exhibiting curved trajectories due to diffraction, impacts quantum entanglement between twin beams, finding that entanglement remains largely unaffected under ideal conditions, with implications for quantum gravity studies.

Contribution

It introduces an optical scheme to analyze the effects of acceleration on entanglement, bridging concepts between gravitation and quantum physics.

Findings

Acceleration does not significantly affect entanglement under ideal conditions.

The optical scheme can help understand processes at the intersection of gravity and quantum physics.

Demonstrates the behavior of entangled beams in accelerated optical fields.

Abstract

Accelerated light has been demonstrated with laser light and diffraction. Within the diffracting field it is possible to identify a portion that carries most of the beam energy, which propagates in a curved trajectory as it would have been accelerated by a gravitational field for instance. Here, we analyze the effects of this kind of acceleration over the entanglement between twin beams produced in spontaneous parametric down-conversion. Our results show that acceleration does not affect entanglement significantly, under ideal conditions. The optical scheme introduced can be useful in the understanding of processes in the boundary between gravitation and quantum physics.