Ya. Sitenko et Dg. Rakityansky, INDUCED VACUUM ANGULAR-MOMENTUM IN (2-DIMENSIONAL SPINOR ELECTRODYNAMICS IN CURVED SPACE - FORMULATION OF THE PROBLEM AND RESULTS(1)), Physics of atomic nuclei, 60(2), 1997, pp. 247-257
Effects due to fermion-vacuum polarization by an external static magne
tic field are considered in a two-dimensional noncompact curved space
with a nontrivial topology. An expression for the vacuum angular momen
tum is obtained. Like the vacuum fermion number, it proves to be depen
dent on the global characteristics of the field and space.