String Creation and Heterotic-Type I' Duality
O. Bergman (Harvard), M.R. Gaberdiel (Cambridge), G. Lifschytz, (Princeton)
TL;DR
This paper explores the duality between type I' and heterotic string theories, deriving the BPS spectrum, confirming string creation phenomena, and discussing non-perturbative gauge enhancement and D0-brane quantum mechanics.
Contribution
It provides a detailed derivation of the BPS spectrum in type I' using heterotic duality and confirms the string creation phenomenon in D0-D8 systems.
Findings
BPS spectrum derived via heterotic duality
Confirmation of string creation in D0-D8 system
Insights into gauge enhancement and D0-brane quantum mechanics
Abstract
The BPS spectrum of type I' string theory in a generic background is derived using the duality with the nine-dimensional heterotic string theory with Wilson lines. It is shown that the corresponding mass formula has a natural interpretation in terms of type I', and it is demonstrated that the relevant states in type I' preserve supersymmetry. By considering certain BPS states for different Wilson lines an independent confirmation of the string creation phenomenon in the D0-D8 system is found. We also comment on the non-perturbative realization of gauge enhancement in type I', and on the predictions for the quantum mechanics of type I' D0-branes.
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