Fast Vacuum Decay into Quark Pairs in Strong Color Electric and Magnetic Fields

Understand

We study quark-pair creations in strong color electromagnetic fields.

• We point out that, for massless quarks, the vacuum persistency probability per unit space-time volume is zero, i.e., the quark-pair creation rate w is infinite, in general homogeneous color electromagnetic fields, while it is finite when the color magnetic field is absent.
• We find that the contribution from the lowest Landau level (LLL) dominates this phenomenon.
• With an effective theory of the LLL projection, we also discuss dynamics of the vacuum decay, taking into account the back reaction of pair creations.