Wigner function of relativistic spin-1/2 particles

Ghi Ryang Shin, Iwo Bialynicki-Birula, Johann Rafelski

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Using the recently developed relativistic Wigner formulation for the density matrix of spin-1/2 particles, we study the =1/2+ Coulomb-like and cavity relativistic states. One of our objectives is to understand the sharing of the total angular momentum of a quantum state between the spin and rotational degrees of freedom, arising due to the spin-orbit coupling. Another is to demonstrate that the 4×4-matrix Wigner function is the appropriate generalization from the 2×2 form of the nonrelativistic theory.

Original languageEnglish (US)
Pages (from-to)645-647
Number of pages3
JournalPhysical Review A
Issue number1
StatePublished - 1992

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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