70 citations · 111 across the 11 of their papers we have counts for
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quant-ph1995
Simple Proof of Invariance of the Bargmann-Wigner Scalar Products
Marek Czachor
An explicitly covariant formalism for dealing with Bargmann-Wigner fields is developed. An invariance of the Barmann-Wigner norm can be proved in a unified way for both massive and…
quant-ph1995
What happens to spin during the SO(3)->SE(2) contraction? (On spin and extended structures in quantum mechanics)
M. Czachor, A. Posiewnik
It is shown that the spin operator can be described by an algebra which is in between so(3) and e(2). Relativistic version of the singlet state for two Dirac electrons is discussed…
quant-ph1995
Triple bracket generalization of quantum mechanics
Marek Czachor
An extension of the Liouville-von Neumann dynamics to a Nambu-type dynamics is proposed. The resulting theory is the first version of nonlinear QM which is free from internal incon…