Physics – Quantum Physics
Scientific paper
1996-01-16
Physics
Quantum Physics
bibliography is extended
Scientific paper
Manifestly covariant formalism for Bargmann-Wigner fields is developed. It is shown that there exists some freedom in the choice of the form of the Bargmann-Wigner scalar product: The general product depends implicitly on a family of world-vectors. The standard choice of the product corresponds to timelike and equal vectors which define a ``time" direction. The generalized form shows that formulas are simpler if one chooses {\it null\/} directions. This freedom is used to derive simple covariant formulas for momentum-space wave functions (generalized Wigner states) corresponding to arbitrary mass and spin and using eigenstates of the Pauli-Lubanski vector. The eigenstates which make formulas the simplest correspond to projections of the Pauli-Lubanski vector on {\it null\/} directions. The new formulation is an alternative to the standard helicity formalism.
No associations
LandOfFree
Manifestly Covariant Approach to Bargmann-Wigner Fields (I): Generalized scalar products and Wigner states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Manifestly Covariant Approach to Bargmann-Wigner Fields (I): Generalized scalar products and Wigner states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manifestly Covariant Approach to Bargmann-Wigner Fields (I): Generalized scalar products and Wigner states will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-71393