The central issue in my view is the origin of the outgoing modes [18]. In a con-
densed matter model with a UV cutoff these must arise from somewhere other than
the near horizon region, either from “superluminal” modes behind the horizon, from
“subluminal” modes that are dragged towards the horizon and then released, or from
no modes at all. The last scenario refers to the possibility that modes “assemble”
from microscopic degrees of freedom in the near horizon region. This seems most
likely the closest to what happens near a spacetime black hole, and for that reason
deserves to be better understood. Other than a linear model that has been studied
in the cosmological context [19], and a linear model of quantum field theory on a
1+1 dimensional growing lattice [20], I don’t know of any work focusing on how to
characterize or study such a process.
John86 said:Does Jacobsen tries to solve Cosmological constant problem with these papers ?
The Cosmological Constant Problem, also known as the "Vacuum Energy Problem", is a long-standing issue in physics where the observed value of the cosmological constant (a parameter that describes the expansion of the universe) is many orders of magnitude smaller than what is predicted by theoretical calculations. This discrepancy has been a major challenge for scientists trying to understand the nature of dark energy and the overall structure of the universe.
Jacobsen's New Papers propose a new approach to solving the Cosmological Constant Problem by using a combination of classical and quantum gravity theories. Specifically, the papers suggest a modification to Einstein's Theory of General Relativity that takes into account the effects of quantum fluctuations on the vacuum energy. This could potentially provide a more accurate prediction of the cosmological constant and help explain the observed value.
Jacobsen's theory has not yet been fully tested, so there is currently no concrete evidence to support it. However, the papers build upon previous research and theoretical frameworks that have shown promising results in addressing the Cosmological Constant Problem. Additionally, the papers have sparked new interest and discussion among the scientific community, which could lead to further experimentation and testing in the future.
If Jacobsen's theory is proven to be correct, it could greatly impact our understanding of the universe and the role of dark energy in its expansion. It could also potentially lead to new insights into the nature of gravity and the fundamental laws of physics. However, more research and evidence is needed before any definitive conclusions can be drawn.
If Jacobsen's theory is validated by future studies and experiments, it could open up new avenues for research and experimentation in the field of cosmology. It could also inspire further investigations into the role of quantum fluctuations in shaping the universe and provide a better understanding of the fundamental nature of gravity. However, more research and testing is needed to fully assess the implications of this new theory.