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Schwinger's principle and gauge fixing in the free electromagnetic field
(2006-02-01)
A manifestly covariant treatment of the free quantum eletromagnetic field, in a linear covariant gauge, is implemented employing Schwinger's variational principle and the B-field formalism. It is also discussed the Abelian ...
Spinorial field and Lyra geometry
(Springer, 2006-10-01)
The Dirac field is studied in a Lyra space-time background by means of the classical Schwinger Variational Principle. We obtain the equations of motion, establish the conservation laws, and get a scale relation relating ...
Spinorial field and Lyra geometry
(Springer, 2006-10-01)
The Dirac field is studied in a Lyra space-time background by means of the classical Schwinger Variational Principle. We obtain the equations of motion, establish the conservation laws, and get a scale relation relating ...
Princípio de ação quântica de Schwinger
(2013-12-01)
The Schwinger quantum action principle is a dynamic characterization of the transformation functions and is based on the algebraic structure derived from the kinematic analysis of the measurement processes at the quantum ...
Spinorial field and Lyra geometry
(Springer, 2014)
COMPLEX KOHN VARIATIONAL PRINCIPLE FOR THE SOLUTION OF LIPPMANN-SCHWINGER EQUATIONS
(Academic Press Inc. Jnl-comp Subscriptions, 1992-12-01)