Relativistic Fermion on a Ring: Energy Spectrum and Persistent Current

Figure 3

Variation of current with flux for 𝑅=10𝑟_𝑒 and 𝑚=1𝑚_𝑒. Here we have used the same unit system as Figure 2 and current is measured in units of 𝐼_𝑒=𝑒𝑐/𝑟_𝑒.