Coleman meets Schwinger
Lorenzo Cornalba (Rome U., Tor Vergata & INFN), Miguel S. Costa and, Joao Penedones (Porto U.)
TL;DR
This paper models the nucleation of spherical D-branes in external RR fields as a tachyon false vacuum decay, linking brane dynamics to flux decay and cosmological models in string theory.
Contribution
It introduces a novel perspective by describing brane nucleation as tachyon false vacuum decay using non-BPS D-brane tachyon solitons.
Findings
Brane nucleation corresponds to tachyon false vacuum decay.
The process models flux-brane decay in string theory.
Implications for quintessence potential decay in flux compactifications.
Abstract
It is well known that spherical D-branes are nucleated in the presence of an external RR electric field. Using the description of D-branes as solitons of the tachyon field on non-BPS D-branes, we show that the brane nucleation process can be seen as the decay of the tachyon false vacuum. This process can describe the decay of flux-branes in string theory or the decay of quintessence potentials arising in flux compactifications.
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