Modified dispersion relations lead to a finite zero point gravitational energy

Modified Dispersion Relations and trans-Planckian Physics

We consider modified dispersion relations in quantum field theory on curved space-time. Such relations, despite breaking the local Lorentz invariance at high energy, are considered in several phenomenological approaches to quantum gravity. Their existence involves a modification of the formalism of quantum field theory, starting from the problem of finding the scalar Green’s functions up to the...

Near Scale Invariance with Modified Dispersion Relations

Modified dispersion relations and black hole physics

A modified formulation of energy-momentum relation is proposed in the context of doubly special relativity. We investigate its impact on black hole physics. It turns out that such modification will give corrections to both the temperature and the entropy of black holes. In particular this modified dispersion relation also changes the picture of Hawking radiation greatly when the size of black h...

Reviewing the Zero Point Energy

A review of recent developments in the study of the Zero Point Energy (ZPE) is made. The origin and behavior of the electromagnetic fields making up the vacuum ZPE is elucidated. From this it is deduced that the ZPE should increase with time even in a static universe such as Narliker and Arp propose. The small oscillations that a static cosmos undergoes will add a variable component to the over...

Dispersion relations in quantum hadrodynamics with a finite cutoff

In the past two decades, nuclei and nuclear matter have been studied in the framework of quantum hadrodynamics (QHD).[1, 2] The meson mean-field theory of nuclear matter[1] has produced successful results to account for the saturation properties at normal nuclear density. Following these successes, many studies and modifications have been performed on relativistic nuclear models. One of these m...