4 papers · 1 filter
Comment on "Uncertainty in measurements of distance"
Y. Jack Ng, H. van Dam
We have argued that quantum mechanics and general relativity give a lower bound on the measurement uncertainty of any distance much greater than…
Anomalous particle-production thresholds through systematic and non-systematic quantum-gravity effects
Giovanni Amelino-Camelia, Y. Jack NG, Hendrik Van Dam
A growing number of studies is being devoted to the identification of plausible quantum properties of spacetime which might give rise to observably large effects. The literature on…
On Wigner's clock and the detectability of spacetime foam with gravitational-wave interferometers
Y. J. Ng, H. van Dam
A recent paper (gr-qc/9909017) criticizes our work on the structure of spacetime foam. Its authors argue that the quantum uncertainty limit for the position of the quantum clock in…
Measuring the foaminess of space-time with gravity-wave interferometers
Y. Jack Ng, H. van Dam
By analyzing a gedanken experiment designed to measure the distance between two spatially separated points, we find that this distance cannot be measured with uncertainty less…