Tuesday, I think.
Can you be a bit more specific?
I am also curious as to what scales of curvature, length, time, acceleration and other possible factors make quantum effects important in gravity. Sorry for not using covariant quantities.
In what kind of a physical situations do our current models (QFT,standard model, GR) fail to predict with accuracy?
At the Plank scale.
Thanks - much clearer.
There is no system in which both GR and QM are necessary to explain observations. So at the moment this is a purely academic exercise.
No currently experimentally accessible situations
Is that the source of the difficulties? Having no physical results to go by.
For example SR, GR and QM were all guided by experiments which could not be accounted for at the time with classical theories.
The following quotations may be relevant:
Situations which in classical and semiclassical GR can be represented only as singularities.
a) The big bang
b) The endpoint of gravitational collapse
c) The endpoint of black hole evaporation
Separate names with a comma.