General relativistic effects in quantum interference of "clocks"

TL;DR

This paper reviews recent proposals for experiments involving quantum interference of clocks, aiming to test the interplay of quantum mechanics and general relativity through time dilation effects in laboratory settings.

Contribution

It introduces and discusses new experimental approaches to observe quantum effects arising from gravitational time dilation using clock interference.

Findings

Proposes feasible laboratory experiments with atoms or photons.

Highlights potential to observe quantum effects of gravity.

Bridges quantum mechanics and general relativity in experimental tests.

Abstract

Quantum mechanics and general relativity have been each successfully tested in numerous experiments. However, the regime where both theories are jointly required to explain physical phenomena remains untested by laboratory experiments, and is also not fully understood by theory. This contribution reviews recent ideas for a new type of experiments: quantum interference of "clocks", which aim to test novel quantum effects that arise from time dilation. "Clock" interference experiments could be realised with atoms or photons in near future laboratory experiments.