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Supersymmetric D-brane probes in 4D N=2 AdS2×S2 attractors

Alberto Castellano1,2,*, Carmine Montella3,†, and Matteo Zatti3,‡

  • *Contact author: acastellano@uchicago.edu
  • †Contact author: montella@mpp.mpg.de
  • ‡Contact author: zatti@mpp.mpg.de
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Phys. Rev. D 113, 066012 – Published 20 March, 2026

DOI: https://doi.org/10.1103/gnxr-g3fv

Abstract

We extend the κ-symmetry analysis of supersymmetric D-brane probes in the AdS2×S2 attractor geometry, originally performed by Simons, Strominger, Thompson, and Yin to also include stationary—but nonstatic—worldlines carrying angular momentum along the 2-sphere. We demonstrate that certain special trajectories, with fixed radius and orbital velocity, solve the equations of motion and moreover satisfy a supersymmetry preserving condition, thus defining new 12-BPS configurations. Furthermore, these classical paths are shown to saturate a lower bound for the Hamiltonian generating global time translations, with the corresponding minimal energy depending on a generalized angular momentum vector J. The direction of the latter, in turn, determines exactly which supercharges remain unbroken. Our results reveal a richer spectrum of (multiparticle) supersymmetric states in AdS2×S2, which can be organized into distinct selection sectors labeled by the conserved SU(2) charges. This construction has direct applications in black hole microstate counting, the analysis of probe dynamics, and AdS2/CFT1 holography.

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Phys. Rev. D 113, 066012– Published 20 March, 2026
  • Received 15 September 2025
  • Accepted 25 February 2026
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