Currents, chemical potential and boundary conditions in lattice QCD
arXiv:hep-lat/0209006 · doi:10.1016/S0920-5632(03)01535-4
Abstract
A connection between the operator fermionic currents $\hatJ$ and corresponding `Grassmannian' currents in the functional integral formalism is studied. The QCD action with non--zero chemical potential is derived. A connection between the fermionic Fock space and boundary conditions along the forth direction is discussed.
arXiv commentLattice2002 (spectrum)