Summary
It is shown that the well-known spin-orbit interaction term contained in Dirac's theory of the electron is, in the relativistic approximation, a pure quantum phenomenon and cannot be derived from relativistic point mechanics.
Riassunto
Si mostra che il ben noto termine di interazione spin-orbita nella teoria di Dirac dell'elettrone è, nell'approssimazione relativistica, un fenomeno puramente quantistico e non lo si può dedurre dalla meccanica relativistica del punto.
Резюме
Показывается, что хорошо известный член спин-орбитального взаимодействия, содержащийся в дираковской теории электрона, в релятивистском приближении, представляет чисто квантовый эффект и не может быть выведен из релятивистской механики.
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References
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J. D. Jackson:Classical Electrodynamics (New York, N. Y., 1962), p. 364;J. J. Sakurai:Adranced Quantum Mechanics (New York, N. Y., 1967), p. 87;V. B. Berestetskii, E. M. Lifschitz andL. P. Pitaevskii:Relativistic Quantum Theory (London, 1971), p. 127.
L. H. Thomas:Nature,117, 514 (1926);Phil. Mag.,3, 1 (1927).
W. Gordon:Zeits. Phys.,48, 11 (1928).
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Beck, G., Davidovich, N. On spin-orbit coupling. Nuov Cim B 27, 19–26 (1975). https://doi.org/10.1007/BF02726334
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DOI: https://doi.org/10.1007/BF02726334