Time and distance constraints for mass and charge interferometry

Abstract

We reanalyse and extend constraints on mass and charge interferometry identified by Mari et al. (2016). We show that their constraint on the time required for coherent interference can be extended by a factor of two. We extend their analysis to consider experiments in which one interferometer measures gravitational or electric fields generated by another. We note that these analyses imply a maximum separation between a mass or charge interferometer and a decohering gravitational or electric field measurement that can be carried out without backreaction.

References in corpus (5)

• Quantum Superposition of Massive Objects and the Quantization of Gravity
• Gravitationally Mediated Entanglement: Newtonian Field vs. Gravitons
• Experiments testing macroscopic quantum superpositions must be slow
• Information Content of the Gravitational Field of a Quantum Superposition
• Two-slit diffraction with highly charged particles: Niels Bohr's consistency argument that the electromagnetic field must be quantized