In the theory of the electromagnetic field without charges, the potentials are not fixed by the
field, but are subject to gauge transformations. The theory thus involves more dynamical …

In a previous paper by the author* it is shown that the general theory of quantum mechanics
together with relativity require the wave equation for an electron moving in an arbitrary …

In an article in 'Nature'last February I put forward a suggestion, of necessity in so concise a
form as to be not very easily intelligible, that when the magnetic properties of the atom are …

Existing attempts to apply the quantum theory to the electromagnetic field are open to
serious objections. Above all, the time is treated differently from the space co-ordinates; the …

1. In a recent paper Dirac* has brilliantly removed the defects before existing in the
mechanics of the electron, and has shown how the phenomena usually called the “spinning …

The relativity quantum theory of an electron moving in a given electromagnetic field,
although successful in predicting the spin properties of the electron, yet involves one serious …

'HE application of the microwave technique to spectroscopy has greatly increased the
accuracy of spectroscopic measurements. Recent experiments on the spectrum of hydrogen …

The new quantum mechanics, when applied to the problem of the structure of the atom with
point-charge electrons, does not give results in agreement with experiment. The …

TTEMPTS to evaluate radiative corrections to elec-tron phenomena have heretofore been
beset by divergence difficulties, attributable to self-energy and vacuum polarization effects …

An analysis is made of the motion of a stream of electrons obeying Lorentz's equations of
motion. It leads to a more general action principle than that of an earlier paper, containing …