https://doi.org/10.1140/epjc/s10052-025-14592-1
Regular Article - Theoretical Physics
Confining modeling of quark propagator
1
Matrosov Institute for System Dynamics and Control Theory SB RAS, 664033, Irkutsk, Russia
2
Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
Received:
12
February
2025
Accepted:
29
July
2025
Published online:
9
August
2025
A confining extension of the quark model with nonlocal currents is proposed. The quark propagator is modified by introducing a cut in 
-space, which in momentum space corresponds to the subtraction of pole singularities. A two-phase structure is proposed for modeling the confinement-deconfinement phase transition. In the confined phase, the quark propagator does not have any pole singularities, while in the deconfined phase, there is a single quark pole.
© The Author(s) 2025
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