Speaker
Description
Magnetic-field effects have been extensively studied in a variety of contexts, including their influence on the dynamics of heavy-ion collisions and the stabilization of certain inhomogeneous phases against thermal fluctuations. This motivates us to ask how magnetic fields affect the moat regime, which has recently attracted increasing attention as a precursor to inhomogeneous phases because it may give rise to observable signatures in heavy-ion collisions, such as finite-momentum peaks in particle spectra and particle-number correlations. The moat regime is a region of the QCD phase diagram in which meson energies attain their minima at finite spatial momenta. We investigate the moat regime in the presence of a magnetic field using the Nambu–Jona-Lasinio model. We calculate mesonic dispersion relations at finite temperature and quark chemical potential in a nonzero magnetic field. By separately considering momenta parallel and perpendicular to the magnetic field, we examine how the magnetic field modifies the moat regime and induces anisotropy in its momentum structure.
