What approaches to quantum gravity are QFT's?

Click For Summary
SUMMARY

The discussion centers on the challenges of quantizing gravity within the framework of quantum field theory (QFT), specifically highlighting the non-renormalizability issue that arises. The original attempts to apply QFT to gravity faced significant obstacles, leading researchers to explore various approaches to quantum gravity. The Wikipedia article on "Quantum Gravity" is recommended for a comprehensive overview of current research directions and the implications of non-renormalizability. Additionally, a related thread on Hawking radiation is suggested for further insights.

PREREQUISITES
  • Understanding of quantum field theory (QFT)
  • Familiarity with the concept of renormalization
  • Basic knowledge of quantum gravity theories
  • Awareness of Hawking radiation and its implications
NEXT STEPS
  • Research the non-renormalizability of gravity in quantum field theory
  • Explore various approaches to quantum gravity, such as loop quantum gravity and string theory
  • Study the implications of Hawking radiation on black hole thermodynamics
  • Review the latest advancements in quantum gravity research through academic journals
USEFUL FOR

The discussion is beneficial for theoretical physicists, researchers in quantum gravity, and students interested in the intersection of quantum mechanics and general relativity.

Nickyv2423
Messages
46
Reaction score
3
What are the different approaches to solving quantum gravity that are in the framework of quantum field theory?
 
Physics news on Phys.org
As I recall the original attempt to quantize gravity within QFT ran into trouble as it was shown to be non-renormalizable. Beyond that the "Quantum Gravity" wikipedia article has a pretty good survey of the basic directions of research and a bit more on the non-renormalizability issue.
 

Similar threads

Undergrad How did the theory of quantum gravity begin?
  • · Replies 16 ·
Replies
16
Views
4K
Undergrad Unifying string theory and loop quantum gravity
  • · Replies 2 ·
Replies
2
Views
5K
Undergrad Conservation of energy in quantum gravity
  • · Replies 27 ·
Replies
27
Views
4K
Undergrad Is loop quantum gravity dual to CFT?
  • · Replies 13 ·
Replies
13
Views
5K
Undergrad Geodesics in quantum gravity Missing Link
  • · Replies 8 ·
Replies
8
Views
673
Undergrad At which point is gravity inconsistent with quantum mechanics?
  • · Replies 24 ·
Replies
24
Views
8K
Undergrad Two recent tests of loop quantum gravity theory
  • · Replies 15 ·
Replies
15
Views
6K
Graduate Thermodynamic Approaches to Quantum Gravity: Discussion
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Current progress in quantum gravity?
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad The standard model from loop quantum gravity via spinors octonions
  • · Replies 26 ·
Replies
26
Views
6K