83 citations · 172 across the 4 of their papers we have counts for
4 papers
Probing spacetime foam with extragalactic sources
W. A. Christiansen, Y. Jack Ng, H. van Dam
Due to quantum fluctuations, spacetime is probably ``foamy'' on very small scales. We propose to detect this texture of spacetime foam by looking for core-halo structures in the im…
An application of neutrix calculus to quantum field theory
Y. Jack Ng, H. van Dam
Neutrices are additive groups of negligible functions that do not contain any constants except 0. Their calculus was developed by van der Corput and Hadamard in connection with asy…
Probing Planck-scale Physics with Extragalactic Sources?
Y. Jack Ng, W. A. Christiansen, H. van Dam
At Planck-scale, spacetime is "foamy" due to quantum fluctuations predicted by quantum gravity. Here we consider the possibility of using spacetime foam-induced phase incoherence o…
A geometrical derivation of the Dirac equation
Y. Jack Ng, H. van Dam
We give a geometrical derivation of the Dirac equation by considering a spin-1/2 particle travelling with the speed of light in a cubic spacetime lattice. The mass of the particle…