Exploring Compact Objects in Holographic QCD: Implications for Astrophysics and Beyond

Dec 23, 2025

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This study delves into the intricacies of compact objects within the framework of holographic QCD, with contributions from Youngman Kim, Yumi Ko, and Kyung Kiu Kim. Key topics include the properties of hyper-nuclei, strangelets, strange quark stars, and neutron stars, alongside the AdS/CFT correspondence linking four-dimensional CFT (QCD) to five-dimensional AdS space. The work examines generating functions, effective actions, and current conservation, highlighting the significance of compactification and resonances in understanding the behavior of these exotic states.

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Exploring Compact Objects in Holographic QCD: Implications for Astrophysics and Beyond

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Compact objects in holographic QCD Youngman Kim (APCTP) with Yumi Ko and Kyung Kiu Kim, JHEP10 (2010) 039 Some slides from Yumi Ko

Nuclei • Hyper-nuclei • Strangelets • Strange quark stars • Neutron stars • etc

AdS/CFT Dictionary 4D CFT (QCD)  5D AdS 4D generating functional  5D (classical) effective action Operator  5D bulk field [Operator]  5D mass Source  boundary value of bulk field Current conservation  gauge symmetry Large Q  small z Confinement  Compactified z Resonances  Kaluza-Klein states