Might this be an effect we need quantum gravity to explain? My intuition is any gravitational effect at that scale would be too small to account for the observation, but tiny relativistic effects do have a way of stacking up in many particle systems.
Shammah51 t1_j8hlvwp wrote
Reply to comment by Weed_O_Whirler in Light traveling through a medium that slows it. Does the same photon emerge? by TheGandPTurtle
Might this be an effect we need quantum gravity to explain? My intuition is any gravitational effect at that scale would be too small to account for the observation, but tiny relativistic effects do have a way of stacking up in many particle systems.