Skip to main content
Log in

Spectral Measures for G 2

  • Published:
Communications in Mathematical Physics Aims and scope Submit manuscript

Abstract

Spectral measures provide invariants for braided subfactors via fusion modules. In this paper we study joint spectral measures associated to the rank two Lie group G 2, including the McKay graphs for the irreducible representations of G 2 and its maximal torus, and fusion modules associated to all known G 2 modular invariants.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Banica T., Bisch D.: Spectral measures of small index principal graphs. Commun. Math. Phys. 269, 259–281 (2007)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  2. Banica, T., Bichon, J.: Spectral measure blowup for basic Hadamard subfactors. arXiv:1402.1048v2 [math.OA]

  3. Böckenhauer J., Evans D.E.: Modular invariants, graphs and \({\alpha}\)-induction for nets of subfactors. II. Commun. Math. Phys. 200, 57–103 (1999)

    Article  ADS  MATH  Google Scholar 

  4. Böckenhauer J., Evans D.E.: Modular invariants, graphs and \({\alpha}\)-induction for nets of subfactors. III. Commun. Math. Phys. 205, 183–228 (1999)

    Article  ADS  MATH  Google Scholar 

  5. Böckenhauer J., Evans D.E.: Modular invariants from subfactors: type I coupling matrices and intermediate subfactors. Commun. Math. Phys. 213, 267–289 (2000)

    Article  ADS  MATH  Google Scholar 

  6. Böckenhauer, J., Evans, D.E.: Modular invariants and subfactors, In: Mathematical Physics in Mathematics and Physics (Siena, 2000), Fields Inst. Commun. vol. 30, pp. 11–37. Amer. Math. Soc., Providence, RI (2001)

  7. Böckenhauer, J., Evans, D.E.: Modular invariants from subfactors, In: Quantum Symmetries in Theoretical Physics and Mathematics (Bariloche, 2000), Contemp. Math. vol. 294, pp. 95–131. Amer. Math. Soc., Providence, RI (2002)

  8. Böckenhauer J., Evans D.E., Kawahigashi Y.: On \({\alpha}\)-induction, chiral generators and modular invariants for subfactors. Commun. Math. Phys. 208, 429–487 (1999)

    Article  ADS  MATH  Google Scholar 

  9. Böckenhauer J., Evans D.E., Kawahigashi Y.: Chiral structure of modular invariants for subfactors. Commun. Math. Phys. 210, 733–784 (2000)

    Article  ADS  MATH  Google Scholar 

  10. Byrd, P.F., Friedman, M.D.: Handbook of elliptic integrals for engineers and scientists, In: Die Grundlehren der mathematischen Wissenschaften, Band 67, 2nd edn, revised. Springer-Verlag, New York (1971)

  11. Calegari F., Morrison S., Snyder N.: Cyclotomic integers, fusion categories, and subfactors. Commun. Math. Phys. 303, 845–896 (2011)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  12. Christe P., Ravanani F.: GN \({\otimes}\) GN+L conformal field theories and their modular invariant partition functions. Int. J. Mod. Phys. A 4, 897–920 (1989)

    Article  ADS  MATH  Google Scholar 

  13. Coquereaux, R., Rais, R., Tahri, E.H.: Exceptional quantum subgroups for the rank two Lie algebras B 2 and G 2. J. Math. Phys. 51, 34 (2010)

  14. Di Francesco P.: Integrable lattice models, graphs and modular invariant conformal field theories. Internat. J. Modern Phys. A 7, 407–500 (1992)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  15. Evans D.E.: Fusion rules of modular invariants. Rev. Math. Phys. 14, 709–732 (2002)

    Article  MATH  MathSciNet  Google Scholar 

  16. Evans, D.E.: Critical phenomena, modular invariants and operator algebras. In: Operator Algebras and Mathematical Physics (Constanţa, 2001), pp. 89–113. Theta, Bucharest (2003)

  17. Evans D.E., Gannon T.: Near-group fusion categories and their doubles. Adv. Math. 255, 586–640 (2014)

    Article  MATH  MathSciNet  Google Scholar 

  18. Evans, D.E., Kawahigashi, Y.: Quantum symmetries on operator algebras. In: Oxford Mathematical Monographs. The Clarendon Press Oxford University Press, New York. Oxford Science Publications (1998)

  19. Evans D.E., Pugh M.: Ocneanu cells and Boltzmann weights for the \({SU(3) \mathcal{ADE}}\) graphs. Münster J. Math. 2, 95–142 (2009)

    MATH  MathSciNet  Google Scholar 

  20. Evans D.E., Pugh M.: SU(3)-Goodman-de la Harpe-Jones subfactors and the realisation of SU(3) modular invariants. Rev. Math. Phys. 21, 877–928 (2009)

    Article  MATH  MathSciNet  Google Scholar 

  21. Evans D.E., Pugh M.: Spectral measures and generating series for Nimrep graphs in subfactor theory. Commun. Math. Phys. 295, 363–413 (2010)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  22. Evans D.E., Pugh M.: Spectral measures and generating series for Nimrep graphs in subfactor theory II: SU(3). Commun. Math. Phys. 301, 771–809 (2011)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  23. Evans, D.E., Pugh, M.: Spectral measures for G 2 II: finite subgroups. Preprint, arXiv:1404.1866 [math.OA]

  24. Evans, D.E., Pugh, M.: Spectral measures for Sp(2). Preprint, arXiv:1404.1912 [math.OA]

  25. Evans, D.E., Pugh, M.: Spectral measures associated to rank two Lie groups and finite subgroups of \({GL(2,\mathbb{Z})}\). Preprint, arXiv:1404.1877 [math.OA]

  26. Gannon, T.: Algorithms for affine Kac-Moody algebras. arXiv:hep-th/0106123

  27. Gannon T., Ho-Kim Q.: The low level modular-invariant partition functions of rank-two algebras. Internat. J. Modern Phys. A. 9, 2667–2686 (1994)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  28. Gaskell R., Peccia A., Sharp R.T.: Generating functions for polynomial irreducible tensors. J. Math. Phys. 19, 727–733 (1978)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  29. Izumi M.: The structure of sectors associated with Longo-Rehren inclusions. II. Examples. Rev. Math. Phys. 13, 603–674 (2001)

    Article  MATH  MathSciNet  Google Scholar 

  30. Jones, V.F.R.: The annular structure of subfactors, In: Essays on Geometry and Related Topics, vol. 1, 2, Monogr. Enseign. Math. 38, pp. 401–463. Enseignement Math., Geneva (2001)

  31. Jones V.F.R., Morrison S., Snyder N.: The classification of subfactors of index at most 5. Bull. Am. Math. Soc. (N.S.) 51, 277–327 (2014)

    Article  MATH  MathSciNet  Google Scholar 

  32. Kač V.G., Peterson D.H.: Infinite-dimensional Lie algebras, theta functions and modular forms. Adv. Math. 53, 125–264 (1984)

    Article  MATH  Google Scholar 

  33. Nesterenko, M., Patera, J., Tereszkiewicz, A.: Orthogonal polynomials of compact simple Lie groups. Int. J. Math. Math. Sci., 23 (2011)

  34. Ocneanu, A.: Paths on Coxeter diagrams: from Platonic solids and singularities to minimal models and subfactors. (Notes recorded by S. Goto). In: B.V. Rajarama Bhat et al. (ed.) Lectures on Operator theory, The Fields Institute Monographs, pp. 243–323. Amer. Math. Soc., Providence, R.I (2000)

  35. Ocneanu, A.: Higher Coxeter Systems (2000). Talk given at MSRI. http://www.msri.org/publications/ln/msri/2000/subfactors/ocneanu

  36. Ocneanu, A.: The classification of subgroups of quantum SU(N). In: Quantum Symmetries in Theoretical Physics and Mathematics (Bariloche, 2000), Contemp. Math. vol. 294, pp.133–159. Am. Math. Soc., Providence, RI (2002)

  37. Rehren K.-H.: Space-time fields and exchange fields. Commun. Math. Phys. 132, 461–483 (1990)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  38. Ruelle, P.: Invariance modulaire dans les theories de champs conformes bidimensionnelles. PhD thesis, Louvain-la-Neuve (1990)

  39. Takesaki, M.: Theory of operator algebras. In: I, Encyclopaedia of Mathematical Sciences, vol. 124. Springer-Verlag, Berlin (2002)

  40. Uhlmann S., Meinel R., Wipf A.: Ward identities for invariant group integrals. J. Phys. A 40, 4367–4389 (2007)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  41. Verstegen D.: New exceptional modular invariant partition functions for simple Kac-Moody algebras. Nuclear Phys. B 346, 349–386 (1990)

    Article  ADS  MATH  MathSciNet  Google Scholar 

  42. Voiculescu, D.V., Dykema, K.J., Nica, A.: Free random variables. In: CRM Monograph Series, vol. 1. American Mathematical Society, Providence, RI (1992)

  43. Weyl H.: Theorie der Darstellung kontinuierlicher halb-einfacher Gruppen durch lineare Transformationen. Math. Z. 23, 271–309 (1925)

    Article  MATH  MathSciNet  Google Scholar 

  44. Weyl H.: Theorie der Darstellung kontinuierlicher halb-einfacher Gruppen durch lineare Transformationen. Math. Z. 24, 328–395 (1926)

    Article  MathSciNet  Google Scholar 

  45. Xu F.: New braided endomorphisms from conformal inclusions. Commun. Math. Phys. 192, 349–403 (1998)

    Article  ADS  MATH  Google Scholar 

  46. Xu F.: Unpublished notes (2001)

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Mathew Pugh.

Additional information

Communicated by Y. Kawahigashi

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Evans, D.E., Pugh, M. Spectral Measures for G 2 . Commun. Math. Phys. 337, 1161–1197 (2015). https://doi.org/10.1007/s00220-015-2293-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00220-015-2293-0

Keywords

Navigation