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hep-th2002
Topological charge and topological susceptibility in connection with translation and gauge invariance
A. M. Kotzinian, O. Yu. Shevchenko, A. N. Sissakian
It is shown that the evaluation of the expectation value (EV) of topological charge density over -vacuum is reduced to investigation of the Chern-Simons term EV. An equation for…
hep-th1998
Topological Effects in Medium
A. N. Sissakian, O. Yu. Shevchenko, S. B. Solganik
Two closely related topological phenomena are studied at finite density and temperature. These are chiral anomaly and Chern--Simons term. It occurs that the chiral anomaly doesn't…