Bargmann–Wigner equations
Wave equation for arbitrary spin particles / From Wikipedia, the free encyclopedia
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In relativistic quantum mechanics and quantum field theory, the Bargmann–Wigner equations describe free particles with non-zero mass and arbitrary spin j, an integer for bosons (j = 1, 2, 3 ...) or half-integer for fermions (j = 1⁄2, 3⁄2, 5⁄2 ...). The solutions to the equations are wavefunctions, mathematically in the form of multi-component spinor fields.
They are named after Valentine Bargmann and Eugene Wigner.