Pauli replies to Pais' question about the transformation of Hamiltonians.
Sin títuloDyson explains why the symmetrical treatment of the radiation field gives the right answer in Schwinger's theory. The letter contains information about experimental results of Powell on fast Pi-mesons and a discussion of the question longitudinal photons.
Sin títuloPauli thanks Källén for his manuscript and letter. He makes a comparison of Källén's and Yang's results. He talks about results by Rohrlich for the case of charged scalar mesons in interaction with the quantized electromagnetic field. He also talks about results by Peasler and Kiroshita and about nu mber for charged vector mesons.
Sin títuloPauli gives additional remarks on Dyson's calculations.
Sin títuloPauli makes a comment on a paper by Dyson, which is the first of a series of papers.
Sin títuloPauli writes about the renormalization method which does not work so well for general interaction in quantized field theory as in the case of positron-quantum electrodynamics.
Sin títuloPauli writes about the talk he had with the German physicist M. Knoll on extra sensory perception (ESP), on different classes of synchronistic phenomena, spontaneous and induced events and on the analogy of a discovery of a law of nature and the induced synchronicity.
Sin títuloHeisenberg explains his ideas about the "Vertauschungsrelationen" (interchange relations) in his paper. The real problem arises after the introduction of an interaction. This belongs to the general question: which invariance conditions are fullfilled by the interaction energy? He is not as pessimistic as Pauli, the whole question boils down to the problem of finding suitable expressions for interaction out of combinations of wavefunctions which obey regular interchange relations. One has to begin by forming models for unitary theories which afterwards will split up in theories for single particles. The postulate of "hermiticity" is connected with the conservation law for nucleons.
Sin títuloMatthews discusses renormalization of "spinless meson-nucleon-photon mixture" and the work of Salam and Dyson.
Sin títuloPauli makes more comments on a paper written by Heisenberg.
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