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Fragmentation and defragmentation of strings in type IIA and their holographic duals
oleh: Dibakar Roychowdhury
Format: | Article |
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Diterbitkan: | SpringerOpen 2021-08-01 |
Deskripsi
Abstract We probe type IIA geometries with folded semiclassical strings those encode the strong coupling dynamics associated with long operators in a class of SCFTs pertaining to spacetimes whose dimension vary from 6d down to 2d. We particularly focus on folded string configurations those are extended through stack of flavor Dp (p = 6, 8) branes localized along the internal manifold. Considering some specific examples within the realm of N $$ \mathcal{N} $$ = 2 linear quivers, we show that the associated string spectrum exhibits a pole as the string approaches flavor D6 branes. We identify this as a fragmentation of long operators in the dual N $$ \mathcal{N} $$ = 2 SCFTs. On the other hand, a similar analysis for N $$ \mathcal{N} $$ = (1, 0) SCFTs in 6d as well as N $$ \mathcal{N} $$ = (0, 4) SCFTs in 4d reveals a set of new dispersion relations at strong coupling. Based on semiclassical calculations, we set an argument that explains either of these cases.