Open strings on D-branes from ABJM
Carlos Cardona, Horatiu Nastase

TL;DR
This paper investigates open strings attached to D-branes in the ABJM/$AdS_4 imes ext{CP}^3$ background, revealing that their energy spectrum resembles that of closed strings and introducing a Hamiltonian description similar to the $AdS_5$ case.
Contribution
It extends the Hamiltonian framework for open strings to the ABJM/$AdS_4 imes ext{CP}^3$ setting, showing spectral similarities with closed strings and avoiding BMN scaling.
Findings
Open string energy spectrum matches closed string form.
Spectrum depends nontrivially on the coupling.
Hamiltonian description parallels the $AdS_5$ case.
Abstract
We study open strings on giant gravitons (D-branes on cycles) in the ABJM/ correspondence. We find that their energy spectrum has the same form as the one for closed strings, with a nontrivial function of the coupling, avoiding BMN scaling. A similar, Cuntz oscillator, Hamiltonian description for the string (operators at strong coupling) to the case is valid also in this case.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Cosmology and Gravitation Theories · Particle physics theoretical and experimental studies
