Letter | Published:

Dirac's New Theory of the Electron

Naturevolume 169page1105 (1952) | Download Citation



IN the last section of a recent paper1, Dirac discusses his formulæ with the following words: “An important feature of the new theory is that it involves only the ratio e/m, not e and m separately. This is what one should expect in a purely classical theory. The existence of e should be looked upon as a quantum effect, and it should appear in a theory only after quantization, and not be a property of classical electrons”.

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  1. 1

    Dirac, P. A. M., Proc. Roy. Soc., 209, 19 (1951).

  2. 2

    Born, M., “Atomic Physics”, 324 (5th edit.), Appendix VIII.

  3. 3

    Born, M., Rev. Mod. Phys., 21, 463 (1949).

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  1. Department of Mathematical Physics, University of Edinburgh

    • MAX BORN


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