146 citations · 667 across the 57 of their papers we have counts for
57 papers
Vacuum Polarization, Geodesic Equation and Sachs-Wolfe Effect
Ali Kaya
We show that the null geodesic equation for photons is modified in the presence of a charged scalar field, with quantum fluctuations acting as an effective mass term that changes t…
Big-Bang is a Boundary Condition
Ali Kaya
There is a common expectation that the big-bang singularity must be resolved in quantum gravity but it is not clear how this can be achieved. A major obstacle here is the difficult…
Schrödinger from Wheeler-DeWitt: The Issues of Time and Inner Product in Canonical Quantum Gravity
Ali Kaya
The wave-function in quantum gravity is supposed to obey the Wheeler-DeWitt (WDW) equation, however there is neither a satisfactory probability interpretation nor a successful solu…
Superhairs on the Branes of D =11 Supergravity
Ali Kaya
It is shown that membrane and fivebrane of D=11 supergravity theory can support nongauge, linearized spin-3/2 superhairs. Supercharges associated with these fields are calculated.…
A (semi)-exact Hamiltonian for the curvature perturbation
Ali Kaya
The total Hamiltonian in general relativity, which involves the first class Hamiltonian and momentum constraints, weakly vanishes. However, when the action is expanded around a cla…
A Simple Proof of Locality in Quantum Mechanics
Ali Kaya
While quantum mechanics allows spooky action at a distance at the level of the wave-function, it also respects locality since there is no instantaneous propagation of real physical…