https://doi.org/10.1140/epjc/s10052-024-13069-x
Regular Article - Theoretical Physics
Study of the effects of external imaginary electric field and chiral chemical potential on quark matter
1
Department of Physics, Liaoning Normal University, 116029, Dalian, China
2
Center for Theoretical and Experimental High Energy Physics, Liaoning Normal University, 116029, Dalian, China
Received:
27
February
2024
Accepted:
29
June
2024
Published online:
26
July
2024
The behavior of quark matter with both external electric field and chiral chemical potential is theoretically and experimentally interesting to consider. In this paper, the case of simultaneous presence of imaginary electric field and chiral chemical potential is investigated using the lattice QCD approach with 
dynamical staggered fermions. We find that overall both the imaginary electric field and the chiral chemical potential can exacerbate chiral symmetry breaking, which is consistent with theoretical predictions. However we also find a non-monotonic behavior of chiral condensation at specific electric field strengths and chiral chemical potentials. The behavior of Polyakov loop in the complex plane is not significantly affected by chiral chemical potential in the region of the parameters considered.
© The Author(s) 2024
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Funded by SCOAP3.
