All-order quartic couplings in highly symmetric D-brane-anti-D-brane systems

Abstract

We compute six-point string amplitudes for the scattering of one closed string Ramond-Ramond state, two tachyons and two gauge fields in the worldvolume of D-brane-anti-D-brane systems in the Type II superstring theories. From the resulting S-matrix elements, we read off the precise form of the couplings, including their exact numerical coefficients, of two tachyons and two gauge fields in the corresponding highly symmetric effective field eheory (EFT) Lagrangian in the worldvolume of D-brane-Anti-D-brane to all orders in α′, which modify and complete previous proposals. We verify that the EFT reproduces the infinite collection of stringy gauge field singularities in dual channels. Inspired by interesting similarities between the all-order highly symmetric EFTs and holographic duals of Vasiliev’s higher spin gravities à là Nilsson and Vasiliev, we make a proposal for tensionless limits of D-brane-anti-D-brane systems.

Swampland conditions for higher derivative couplings from CFT

“…It would be interesting to extend our analysis and compare with more recent results (such as[95]) on all order higher derivative couplings in different string theories.…”

Supersymmetry breaking, brane dynamics and Swampland conjectures

“…Aside from cases where the leading contribution vanishes, one can expect that couplings of this type be required to all orders, at least in α , in order to circumvent a Dine-Seiberg-like argument [121]. Some progress along these lines has been achieved via all-order string-amplitude computations (see, e.g., [122,123]) and via T-duality in the context of cosmology [124][125][126][127][128][129][130][131][132][133]. Furthermore, from the perspective of holography, it would be interesting to understand whether the IR fixed-point structure exhibited by the JHEP10(2021)080 near-horizon AdS throats discussed in section 3 can be reproduced via strong-coupling effects in the putative dual gauge theory.…”