What is conformal field theory in physics?
What is conformal field theory in physics?
A conformal field theory (CFT) is a quantum field theory that is invariant under conformal transformations. Conformal field theory has important applications to condensed matter physics, statistical mechanics, quantum statistical mechanics, and string theory.
What is renormalization particle physics?
renormalization, the procedure in quantum field theory by which divergent parts of a calculation, leading to nonsensical infinite results, are absorbed by redefinition into a few measurable quantities, so yielding finite answers.
What is renormalization group equation?
In renormalizable quantum field theories one of the most useful tools is that of the renormalization group equations (RGE). The RGE dictate how the coupling constants depend on the scale, and are one of the most important intrinsic properties of a quantum field theory.
What conformal means?
Definition of conformal 1 : leaving the size of the angle between corresponding curves unchanged conformal transformation. 2 of a map : representing small areas in their true shape.
What is conformal mapping in complex analysis?
A conformal mapping, also called a conformal map, conformal transformation, angle-preserving transformation, or biholomorphic map, is a transformation. that preserves local angles. An analytic function is conformal at any point where it has a nonzero derivative.
What is renormalization group flow?
In theoretical physics, the term renormalization group (RG) refers to a formal apparatus that allows systematic investigation of the changes of a physical system as viewed at different scales. As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system.
Why the renormalization group is a good thing?
They are efficient calculational methods (for Feynman diagrams). They completely hide the physics of many scales. These methods are hard to follow in detail for physicists without quantum field theoretical training. “
