Has anyone heard of Anyonic strings?

  • Context: Graduate 
  • Thread starter Thread starter MTd2
  • Start date Start date
  • Tags Tags
    Strings
Click For Summary

Discussion Overview

The discussion centers on the concept of anyonic strings, exploring their theoretical implications in relation to string theory, particularly in the context of topological quantum field theories and the fractional quantum Hall effect. Participants examine the nature of anyons, their dimensional constraints, and potential connections to supersymmetry.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that anyonic strings could be an alternative to supersymmetric strings, expressing a personal preference against supersymmetry due to its perceived limitations.
  • Another participant clarifies that anyons arise from non-trivial representations of the braid group in 2+1 dimensions, indicating that anyons do not exist in higher dimensions in the same sense.
  • A participant acknowledges a misunderstanding regarding the dimensionality of anyons, noting that any potential relation to string theory should be topological.
  • Several links to relevant literature and articles are shared, highlighting various aspects of anyons, topological quantum field theories, and their applications in quantum computation.
  • One participant mentions their PhD focus on topological systems and the fractional quantum Hall effect, recommending a specific review article on non-Abelian anyons and topological quantum computation.

Areas of Agreement / Disagreement

Participants express differing views on the relevance and implications of anyonic strings in relation to string theory and supersymmetry. The discussion includes both supportive and critical perspectives, indicating that multiple competing views remain without a consensus.

Contextual Notes

Participants reference various theoretical frameworks and articles, suggesting a complex interplay of ideas that may depend on specific definitions and assumptions regarding anyons and their dimensional properties.

MTd2
Gold Member
Messages
2,019
Reaction score
25
Anyon are particular 2 dimensionsional objects and so is the worldsheet critical superstrings. But given that those 2 are extemely fashionable nowadays, and they happen in this dimension, I am extremely surprised to find that anyone didn't try anyonic strings. That is, instead of supersymmetric, one would get an anyon relation.

Anyway, I relly don't like supersymmetry because they are not generic enough, because they just relate fermions and bosons. Personal taste, really. Maybe relations between anyons and supersymmetry might have a relation. I don't know.

Any hint?
 
Physics news on Phys.org
Well, remember first that anyons arise due to the non-trivial representations of the permutation (or better: braid) group in 2+1 dimensions. In that same train of thought it follows that there are no anyons in higher dimensions. At least not in the same literal sence.

On the other hand, anyons are closely related to topological quantum field theories, Chern-Simons theory in particular. TQFT's in higher dimensions are indeed employed in string theory, although don't ask me in what way.
 
Sure, you are right. I had this mental image of anyons in a plane, because of the usual examples in condensed matter QM, where time is just a paramter. I totally forgot that the time dimension was not being counted. So you are right, if there is any relation with a string theory, it should be a topological one.

Yes, after your tip, I've found some interesting things:

Exotic Strings statitics, a post by Urs Schreiber:
http://golem.ph.utexas.edu/string/archives/000777.html


Fractional quantum Hall effect and nonabelian statistics
http://arxiv.org/abs/hep-th/9202001
and the articles that cites it:
http://arxiv.org/cits/hep-th/9202001

Exotic Statistics for Strings in 4d BF Theory:
http://arxiv.org/abs/gr-qc/0603085

Links, Quantum Groups, and TQFT's
http://arxiv.org/abs/q-alg/9506002v2

Quantum field theories of vortices and anyons
http://www.projecteuclid.org/DPubS?...e=UI&handle=euclid.cmp/1104178064&page=record

Interesting stuff that I found while I was searching:


Topological Quantum Computation:
http://www.theory.caltech.edu/~preskill/talks/Preskill_Biedenharn4.pdf

An Anyon primer:
http://arxiv.org/abs/hep-th/9209066

Exact Solutions in Einstein-Chern-Simons Electrodynamics
http://icpr.snu.ac.kr/resource/wop.pdf/J01/1992/025/R03/J011992025R030274.pdf
 
Last edited:
Funny that you mention those. I'm actually starting my PhD on topological systems and its relation to topological quantum computation, with emphasis on the fractional quantum Hall effect. I recommend this review article in particular:

Non-Abelian Anyons and Topological Quantum Computation
http://arxiv.org/abs/0707.1889
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
6K
  • · Replies 0 ·
Replies
0
Views
4K
  • · Replies 15 ·
Replies
15
Views
4K
  • · Replies 5 ·
Replies
5
Views
5K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 2 ·
Replies
2
Views
5K
  • · Replies 21 ·
Replies
21
Views
6K
  • · Replies 3 ·
Replies
3
Views
7K