Easy piece about Non commutative geometry ?

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lalbatros
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Easy piece about "Non commutative geometry" ?

I would like to taste the subject. Would some of you know a reference where I could read about it, with math at the graduate physics level at most? I would also be interrested to understand the applications.
 
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Non commutative geometry is a fascinating and complex subject that has applications in various fields, including physics. It is a mathematical framework that studies spaces and structures that do not follow the traditional rules of commutativity, where the order of operations does not affect the outcome.

At a graduate physics level, a good starting point to understand non commutative geometry is the book "Noncommutative Geometry for Particle Physicists" by Walter D. van Suijlekom. This book provides a comprehensive introduction to the subject, with examples and applications to particle physics.

One of the main applications of non commutative geometry is in quantum field theory, where it provides a way to incorporate gravity into the equations. It also has applications in string theory, where it helps to understand the geometry of extra dimensions.

Other areas where non commutative geometry has been applied include condensed matter physics, statistical mechanics, and even economics. It has also been used to study noncommutative spaces, such as fractals and noncommutative tori.

Overall, non commutative geometry is a fascinating subject that has wide-ranging applications and continues to be an active area of research. I highly recommend delving into it and exploring its various applications in different fields.
 

1. What is non commutative geometry?

Non commutative geometry is a branch of mathematics that studies geometric objects and spaces using non-commutative algebra and geometry. It deals with non-commutative rings and algebras, which are structures in which multiplication is not commutative.

2. How is non commutative geometry different from traditional geometry?

Traditional geometry studies commutative objects and spaces, where the order of multiplication does not matter. Non commutative geometry extends this concept to non-commutative objects, where the order of multiplication matters and can affect the resulting geometry.

3. What are the applications of non commutative geometry?

Non commutative geometry has various applications in mathematics, physics, and engineering. It has been used to study quantum field theory, string theory, and non-commutative spaces in general relativity. It also has applications in signal processing, cryptography, and coding theory.

4. Is non commutative geometry a difficult concept to understand?

Non commutative geometry can be a challenging concept to grasp, as it involves abstract algebra and advanced mathematical concepts. However, with proper study and practice, it can be understood by anyone with a strong foundation in mathematics.

5. What are some important theories and results in non commutative geometry?

Some important theories and results in non commutative geometry include the Connes-Kreimer Hopf algebra, non commutative tori, and the Gromov-Hausdorff metric. Other notable results include the non commutative version of Riemannian geometry and the concept of spectral triples.

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