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A Positive-Energy Relativistic Wave Equation
P. A. M. Dirac
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences
Vol. 322, No. 1551 (May 4, 1971), pp. 435-445
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/77762
Page Count: 11
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The relativistic wave equations currently used in physical theory are symmetrical between positive and negative energies. A new relativistic wave equation for particles of non-zero rest-mass is here proposed, allowing only positive values for the energy. There is great formal similarity between it and the usual relativistic wave equation for the electron, but the physical significance is very different. In particular, the new equation gives integral values for the spin.
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences © 1971 Royal Society