Researchers have investigated thermal photon emission from magnetized quark-gluon plasma (QGP) using a (1+1)-dimensional relativistic magnetohydrodynamics (MHD) model. The study systematically incorporated magnetic susceptibility $\chi_m$, both constant and temperature-dependent from lattice QCD calculations, as well as weak-field quantum corrections to quark distribution functions $f_{\rm EM}$. QGP is a state of matter that existed in the first microseconds of the universe and is briefly recreated in heavy-ion collisions at accelerators like the LHC.

Employing the Pu-Bjorken MHD framework, the team calculated photon production rates from processes such as Compton scattering, quark-antiquark ($q\bar{q}$) annihilation, bremsstrahlung, and annihilation with rescattering. These calculations were integrated over the QGP's spacetime evolution to obtain transverse momentum ($p_T$) spectra. The results indicate that photon yields are predominantly governed by the initial magnetic field strength and its temporal decay profile, while magnetic susceptibility $\chi_m$ exerts negligible influence in the explored parameter space.

In contrast, the weak-field correction $f_{\rm EM}$ induces a distinct enhancement in thermal photon production at intermediate $p_T$. This work establishes a rigorous theoretical framework for quantifying electromagnetic observables in magnetized QGP. It is crucial for understanding QGP properties, as photons are "clean" probes that traverse the medium without strong interaction, carrying direct information about its internal state.

This study lays the foundation for future dissipative MHD investigations incorporating spin-magnetization dynamics. A detailed understanding of how magnetic fields affect particle production in QGP is essential for interpreting experimental data from heavy-ion collisions and for advancing our knowledge of matter under extreme conditions of temperature and density, such as those that existed in the early universe.