The long-range interactions between branes in diverse dimensions

TL;DR

This paper calculates long-range interactions between various branes, including novel cases with non-abelian fluxes, confirming known phenomena and raising questions about bound state marginality.

Contribution

It provides the first explicit calculations of long-range interactions between D-branes with non-abelian fluxes in specific cases, extending previous theoretical understanding.

Findings

Confirmed half-string creation between D0 and D8 branes.

Computed interactions with non-abelian fluxes on D-branes.

Raised questions about the marginality of certain bound states.

Abstract

We calculate the long-range interactions between two simple branes placed parallel at a separation in diverse dimensions via an effective field theory approach. We also compute for the first time the explicit long-range interaction between two D-branes with each carrying a world-volume non-abelian magnetic flux in three special cases, respectively. In particular, we demonstrate that the half-string creation between a D$_0$-brane and a D$_8$-brane continues to hold even in the present context, therefore lending further support to the previous assertion of this. Our computations re-raise also the issue in one case on whether so constructed (D$_0$, D$_8$) bound state is actually a marginal one.