Interaction Lagrangian

Some articles on lagrangian, lagrangians, interaction lagrangian, interaction:

BRST Quantization - The BRST Operator and Asymptotic Fock Space
... adding a BRST exact term to a gauge invariant Lagrangian density preserves the relation ... The "true" Lagrangian, presumed to be invariant under local gauge transformations, is in the kernel of the BRST operator but not in its image.) The ... Since we have postulated that the "true" Lagrangian of our theory is gauge invariant, the true "states" of our Hamiltonian system are equivalence classes under local gauge transformation ...
Regauging - Classical Gauge Theory - An Example: Scalar O(n) Gauge Theory
... of this section requires some familiarity with classical or quantum field theory, and the use of Lagrangians ... Definitions in this section gauge group, gauge field, interaction Lagrangian, gauge boson ... from global symmetry properties, and how it leads to an interaction between fields which were originally non-interacting ...

Famous quotes containing the word interaction:

    Here is this vast, savage, howling mother of ours, Nature, lying all around, with such beauty, and such affection for her children, as the leopard; and yet we are so early weaned from her breast to society, to that culture which is exclusively an interaction of man on man,—a sort of breeding in and in, which produces at most a merely English nobility, a civilization destined to have a speedy limit.
    Henry David Thoreau (1817–1862)