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Spin dynamics of wave packets evolving with the Dirac Hamiltonian in atoms with high atomic number Z

Abstract : The motion of circular WP for one electron in central Coulomb field with high Z is calculated. The WP is defined in terms of solutions of the Dirac equation in order to take into account all possible relevant effects in particular the spin-orbit potential. A time scale is defined within which spin dynamics must be taken into account mainly in the atoms with high Z. Within this time scale there exists a mechanism of collapses and revivals of the spin already shown by the authors for harmonic oscillator potential and called the 'spin-orbit pendulum'. However this effect has not the exact periodicity of the simpler model, but the WP's spatial motion is nevertheless quite similar.
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Submitted on : Wednesday, August 30, 2000 - 11:10:28 AM
Last modification on : Thursday, November 19, 2020 - 12:58:27 PM
Long-term archiving on: : Monday, June 21, 2010 - 4:22:36 PM

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R. Arvieu, P. Rozmej, M. Turek. Spin dynamics of wave packets evolving with the Dirac Hamiltonian in atoms with high atomic number Z. Physical Review A, American Physical Society, 2000, 62, 022514-8 p. ⟨10.1103/PhysRevA.62.022514⟩. ⟨in2p3-00005940⟩

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