| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
26 April 2024 |
|
| | | |
|
Article overview
| |
|
Towards a unitary, renormalizable and ultraviolet-complete quantum theory of gravity | Christian F. Steinwachs
; | Date: |
16 Apr 2020 | Abstract: | For any fundamental quantum field theory, unitarity, renormalizability, and
relativistic invariance are considered to be essential properties. Unitarity is
inevitably connected to the probabilistic interpretation of the quantum theory,
while renormalizability guarantees its completeness. Relativistic invariance,
in turn, is a symmetry which derives from the structure of spacetime. So far,
the perturbative attempt to formulate a fundamental local quantum field theory
of gravity based on the metric field seems to be in conflict with at least one
of these properties. In quantum Hov{r}ava gravity, a quantum Lifshitz field
theory of gravity characterized by an anisotropic scaling between space and
time, unitarity and renormalizability can be retained while Lorentz invariance
is sacrificed at high energies and must emerge only as approximate symmetry at
low energies. I review various approaches to perturbative quantum gravity with
a particular focus on recent progress in the quantization of Hov{r}ava
gravity, supporting its theoretical status as a unitary, renormalizable and
ultraviolet-complete quantum theory of gravity. | Source: | arXiv, 2004.7842 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |