Regular Article - Theoretical Physics
QCD phase diagram with a background magnetic field in an improved soft-wall AdS/QCD model
Department of Applied Physics, School of Physics and Electronics, Hunan University, 410082, Changsha, People’s Republic of China
2 CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, People’s Republic of China
3 International Centre for Theoretical Physics Asia-Pacific (ICTP-AP), University of Chinese Academy of Sciences, 100049, Beijing, People’s Republic of China
Accepted: 7 June 2021
Published online: 25 June 2021
We studied the magnetic effects on the chiral transition and the melting properties of vector and axial-vector mesons in the improved soft-wall AdS/QCD model under a charged magnetic background, which is solved perturbatively from an Einstein–Maxwell system with a negative cosmological constant. The phase diagrams for both chiral transition and meson melting have been obtained. We show that the inverse magnetic catalysis emerged naturally in the improved soft-wall model. We also find that the magnetic field can induce meson melting, at least for the vector and axial-vector mesons, in our holographic setup.
© The Author(s) 2021
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