Current progress in quantum gravity?

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Discussion Overview

The discussion centers on the current progress in quantum gravity, with a focus on finding review papers and understanding various approaches to the topic. Participants express interest in the status of loop quantum gravity and other theories, as well as the latest developments in the field.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks review papers on recent developments in quantum gravity, expressing uncertainty about the various approaches beyond loop quantum gravity.
  • Another participant provides links to resources that may contain relevant information on quantum gravity.
  • A summary mentions a leading researcher in loop quantum gravity suggesting that certain theories, including Lorentz invariance violating theories, supergravity, and the anti-deSitter/conformal field theory relationship, should be abandoned in future research.
  • A participant recommends a talk by Hermann Nicolai as a potential overview of the topic.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the status of loop quantum gravity or the validity of the theories mentioned. Multiple competing views regarding the direction of quantum gravity research are evident.

Contextual Notes

Participants express uncertainty about the current state of various theories in quantum gravity and the implications of abandoning certain approaches. The discussion reflects a range of opinions on what constitutes valid research directions.

Who May Find This Useful

Researchers and students interested in quantum gravity, theoretical physics, and the latest developments in related fields may find this discussion relevant.

Haorong Wu
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TL;DR
Where can I find a review of the current progress in quantum gravity?
Hi, there. I am interested in quantum gravity. But I am not sure how to find review papers about its recent developments. I tried "quantum gravity" on google scholar. But I could not find a suitable review other than that about loop quantum gravity. I am not sure what are the other approaches to this problem and I am looking for papers covering them.

BTW, I have heard loop quantum gravity several years ago. In my memory, this theory seemed not to give any new predictions and is questionable. What is its status now in the physics community?

Thanks.
 
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Haorong Wu said:
Summary:: Where can I find a review of the current progress in quantum gravity?

I am interested in quantum gravity. But I am not sure how to find review papers about its recent developments.
Have you already read this current thread in the BTSM forum?

ohwilleke said:
Summary:: One of the leading researchers in Loop Quantum Gravity discusses existing observations that should guide future quantum gravity research in a three page paper.

Rovelli points to three pieces of existing observational evidence that should guide future quantum gravity research. Bottom line:

* abandon Lorentz invariance violating quantum gravity theories,
* abandon supergravity and string theory,
and
* stop working on the anti-deSitter/conformal field theory relationship in gravity and cosmology work (leave it to the condensed matter physicists who have legitimate uses for it).

<<SNIP>>
 
Moderator's note: Thread moved to Beyond the Standard Model forum.
 
Thanks, guys. I will check all those information.
 
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