Whatever happened to AdS/CFT and the Quark Gluon Plasma?

In summary, Bee Hossenfelder's blog post discusses the AdS/CFT correspondence and its potential role in describing the quark gluon plasma. The small viscosity observed in RHIC measurements led to a revision of previous models and the AdS/CFT correspondence provides a natural explanation for this. Critics of string theory were proven wrong as this development showed its usefulness in improving our understanding of real-world physical processes. The comments section also contains informative remarks from Andreas Karch and Thomas Schaefer, and Andreas Karch further expands on his thoughts in a guest post on another blog.
  • #1
John86
257
9
Nice posting by Bee Hossenfelder on her Blog !..

http://backreaction.blogspot.nl/2013/09/whatever-happened-to-adscft-and-quark.html

A decade ago, the AdS/CFT correspondence was celebrated as a possible description of the quark gluon plasma. RHIC measurements of heavy ion collisions at that time showed a surprisingly small viscosity that lead to a revision of the previous models. Excitingly, a small viscosity appears naturally in the gauge-theory dual of the AdS/CFT correspondence, nevermind that QCD is neither conformal nor supersymmetric. This development was all the more welcome as it served to demonstrate that string theory is not useless, as critics claimed, but that it can provide insights which improve our understanding of physical processes in the real world.
 
Physics news on Phys.org

FAQ: Whatever happened to AdS/CFT and the Quark Gluon Plasma?

What is AdS/CFT and its relevance to the Quark Gluon Plasma?

AdS/CFT is a duality principle proposed by Juan Maldacena in 1997, which states that a theory of gravity in a certain spacetime (Anti-de Sitter space) is equivalent to a quantum field theory living on the boundary of that spacetime. The Quark Gluon Plasma (QGP) is a state of matter that is believed to have existed in the early universe, and AdS/CFT has been used to study the properties of QGP in a controlled way.

Has the AdS/CFT correspondence been proven?

While there is strong evidence for the validity of the AdS/CFT correspondence, it has not been definitively proven. However, it has been extensively studied and has provided valuable insights into the properties of both gravity and quantum field theory.

What are some applications of AdS/CFT to the QGP?

AdS/CFT has been used to study various properties of the QGP, including its transport coefficients, entropy production, and thermalization. It has also been applied to understand the holographic dual of heavy ion collisions and the dynamics of quarks and gluons in the QGP.

Is AdS/CFT still an active area of research?

Yes, AdS/CFT is still a very active area of research. It has led to many new developments in both gravity and quantum field theory, and continues to be studied by scientists from various disciplines.

Are there any unresolved questions or challenges in using AdS/CFT to study the QGP?

While AdS/CFT has been successful in providing insights into the properties of the QGP, there are still some unresolved questions and challenges. These include understanding the effects of finite temperature and finite density, as well as incorporating the effects of strong interactions between quarks and gluons.

Similar threads

A Is AdS/CFT Theory a Viable Option for Post-Graduate Research in HEP?
Replies
3
Views
3K
How Does String Theory Explain Quark-Gluon Plasma Properties?
Replies
2
Views
2K
AdS/CFT as quantum to classical correspondence
Replies
22
Views
4K
A Twistors and celestial holography
Replies
14
Views
4K
Quark-Gluon Plasma: Temperature, Validity & Quantum Theories
Replies
7
Views
2K
How Can Lone Quarks Exist in a Color-Neutral Quark-Gluon Plasma?
2
Replies
44
Views
10K
A "The 7 Strangest Coincidences in the Laws of Nature" (S. Hossenfelder)
2
Replies
62
Views
5K
How Does Quark-Gluon Plasma Influence Big-Bang Nucleosynthesis?
Replies
4
Views
4K
I LQG dark matter candidate vs rival dark matter candidates
Replies
2
Views
2K
Recent papers on self-dual loop quantum black holes
Replies
28
Views
4K

Hot Threads

Recent Insights

Back
Top