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- W2950601095 abstract "In this note we present a description on the implications on the refined dS Swampland conjecture by considering non-BPS states in type IIB toroidal compactifications . We concentrate on a model T-dual to type I theory for which the total K-theory charge of the non-BPS states vanishes on the six-dimensional torus modded out by an orientifold three-plane. Particularly we consider the presence of non-BPS five branes wrapping internal two-cycles. We comment on the instability of this state by the presence of tachyon modes and the apparent violation of the refined dS conjecture at the minimum of the tachyon potential. The conjecture seems to be valid once we take into account that discrete K-theory charge vanishes. We also describe some issues related to the presence of NS-NS fluxes required to stabilize some moduli since they trigger the appearance of Freed-Witten anomalies. Cancellation of these anomalies implies a topological transformation between non-BPS states and fluxes with the same discrete K-theory charge. After the transition we observe that the dS vacuum constructed from the presence of non-BPS states is also unstable." @default.
- W2950601095 created "2019-06-27" @default.
- W2950601095 creator A5027251782 @default.
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- W2950601095 date "2023-01-01" @default.
- W2950601095 modified "2023-10-16" @default.
- W2950601095 title "Some Remarks on the Ds Conjecture, Fluxes and K-Theory in Iib Toroidal Compactifications" @default.
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- W2950601095 doi "https://doi.org/10.2139/ssrn.4378285" @default.
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