Microstates and near-horizon D-brane probes
Joris Raeymaekers
TL;DR
This paper explores counting black hole microstates via probe branes in near-horizon geometries, extending previous proposals to D0-D4 and D1-D5 systems in type IIA and IIB string theories.
Contribution
It generalizes the microstate counting method using probe branes to new two-charge black hole configurations in different string theory setups.
Findings
Extended the microstate counting approach to D0-D4 black holes.
Constructed BPS D-brane probes in D1-D5 near-horizon backgrounds.
Connected probe brane methods with existing microstate counting proposals.
Abstract
In hep-th/0412322, Gaiotto, Strominger and Yin proposed a novel way of counting black hole microstates by counting the quantum mechanical ground states of probe branes placed in the near-horizon black hole background. We discuss the generalization of this proposal to the case of two-charge D0-D4 `small' black holes in type IIA. We also describe the construction of BPS D-brane probes in the near-horizon region of the 2-charge D1-D5 system in type IIB. Based on hep-th/0505176, hep-th/0607150.
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