Publications [#248078] of M. Ronen Plesser
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- Aspinwall, PS; Plesser, MR. "Decompactifications and massless D-branes in hybrid models." Journal of High Energy Physics 2010.7 (January, 2010): 078. [0909.0252v1], [doi]
(last updated on 2024/04/18)Abstract:
A method of determining the mass spectrum of BPS D-branes in any phase limit of a gauged linear sigma model is introduced. A ring associated to monodromy is defined and one considers K-theory to be a module over this ring. A simple but interesting class of hybrid models with Landau-Ginzburg fibres over ℙn are analyzed using special Kähler geometry and D-brane probes. In some cases the hybrid limit is an infinite distance in moduli space and corresponds to a decompactification. In other cases the hybrid limit is at a finite distance and acquires massless D-branes. An example studied appears to correspond to a novel theory of supergravity with an SU(2) gauge symmetry where the gauge and gravitational couplings are necessarily tied to each other. © SISSA 2010.