The diagonal cosets of the Heisenberg group
| Authors |
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|---|---|
| Publication date | 2008 |
| Journal | The Journal of High Energy Physics |
| Volume | Issue number | 2008 | 5 |
| Pages (from-to) | 060 |
| Number of pages | 42 |
| Organisations |
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| Abstract | In this paper we study the diagonal cosets of the non-compact H4 WZW model. Generalising earlier work by Antoniadis and Obers, we provide an exact world-sheet description for several families of non-maximally symmetric gravitational plane waves with background NS fluxes. We show that the σ-models that correspond to an asymmetric action of the gauge group smoothly interpolate between singular and non-singular plane waves. We also analyse the representations of the coset chiral algebra and derive the spectrum of all the models. |
| Document type | Article |
| Published at |
https://doi.org/10.1088/1126-6708/2008/05/060
(Final published version)
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