Is AdS CFT proven?

There are lots of AdS/CFT correspondences, because there are lots of CFTs with the right properties to have a gravity dual. However, as far as I know, none of them have been proven.

Why AdS CFT?

The anti–de Sitter/conformal field theory (AdS/CFT) correspondence, also known as holographic duality, is a conjectured relation between quantum field theory and a higher-dimensional gravity theory. It was proposed in 1997 by Juan Maldacena in the context of string theory.

What is the gauge group of gravity?

Gauge theory gravity (GTG) is a theory of gravitation cast in the mathematical language of geometric algebra. To those familiar with general relativity, it is highly reminiscent of the tetrad formalism although there are significant conceptual differences.

Are black holes 2D?

Black holes are 3 dimensional. They are simply celestial bodies like planets or stars but have so much mass that even light cannot escape their gravity if it is within a certain distance from them. Show activity on this post. In our universe of 3 spatial dimensions the event horizon is a 2-sphere.

Is gravity a gauge force?

During the last five decades, gravity, as one of the fundamental forces of nature, has been formulated as a gauge theory of the Weyl-Cartan-Yang-Mills type.

What is a gauge in physics?

A gauge theory is a type of theory in physics. The word gauge means a measurement, a thickness, an in-between distance (as in railroad tracks), or a resulting number of units per certain parameter (a number of loops in an inch of fabric or a number of lead balls in a pound of ammunition).

Does a 5th dimension exist?

The fifth dimension is a micro-dimension which is accepted in physics and mathematics. It’s here to have a nice and seamless tie between gravity and electromagnetism, or the main fundamental forces, which seem unrelated in the regular four-dimensional spacetime.

What is the AdS/CFT correspondence?

In the AdS/CFT correspondence, one considers, in addition to a theory of quantum gravity, a certain kind of quantum field theory called a conformal field theory. This is a particularly symmetric and mathematically well behaved type of quantum field theory.

What is the history of AdS/CFT?

In late 1997, Juan Maldacena published a landmark paper that initiated the study of AdS/CFT. According to Alexander Markovich Polyakov, ” [Maldacena’s] work opened the flood gates.”

What is the AdS/CFT duality?

AdS/CFT is a particular, and deeply surprising, example of a duality. It relates two very different theories and at first sight seems obviously wrong. It states that there is a duality between theories of gravity in five dimensions and quantum field theories (QFTs) in four dimensions.

What is the AdS/CFT correspondence for supergravity coupling?

The AdS/CFT correspondence has traditionally been discussed just in the large N limit and for large ‘t Hooft coupling, where the given gauge theory is dual to plain classical supergravity, which stands out as being particularly tractable and well-understood.