38 citations · 382 across the 75 of their papers we have counts for
6 papers · 1 filter
Thermality of the zero-point length and gravitational selfduality
P. Fernandez de Cordoba, J. M. Isidro, Rudranil Roy
It has been argued that the existence of a zero-point length is the hallmark of quantum gravity. In this letter we suggest a thermal mechanism whereby this quantum of length arises…
Spacetime metric from quantum-gravity corrected Feynman propagators
P. Fernandez de Cordoba, J. M. Isidro, Rudranil Roy
Differentiation of the scalar Feynman propagator with respect to the spacetime coordinates yields the metric on the background spacetime that the scalar particle propagates in. Now…
Spherical space in the Newtonian limit: The cosmological constant
J. M. Isidro, P. Fernandez de Cordoba, J. C. Castro-Palacio
We compute the cosmological constant of a spherical space in the limit of weak gravity. To this end we use a duality developed by the present authors in a previous work. This duali…
The cosmological constant of emergent spacetime in the Newtonian approximation
J. C. Castro-Palacio, P. Fernandez de Cordoba, J. M. Isidro
We present a simple quantum-mechanical estimate of the cosmological constant of a Newtonian Universe. We first mimic the dynamics of a Newtonian spacetime by means of a nonrelativi…
Summing over spacetime dimensions in quantum gravity
Erik Curiel, Felix Finster, J. M. Isidro
Quantum-gravity corrections (in the form of a minimal length) to the Feynman propagator for a free scalar particle in are shown to be the result of summing over all…
A note on the quantum of time
J. M. Isidro, J. L. Gonzalez-Santander, P. Fernandez de Cordoba
Quantum mechanics rests on the assumption that time is a classical variable. As such, classical time is assumed to be measurable with infinite accuracy. However, all real clocks ar…