General relativistic effects in quantum interference of photons

Understand

Quantum mechanics and general relativity have been extensively and independently confirmed in many experiments.

• However, the interplay of the two theories has never been tested: all experiments that measured the influence of gravity on quantum systems are consistent with non-relativistic, Newtonian gravity.
• On the other hand, all tests of general relativity can be described within the framework of classical physics.
• Here we discuss a quantum interference experiment with single photons that can probe quantum mechanics in curved space-time.