Lancaster: American Physical Society, 1950. 1st Edition. FIRST EDITION of Feynman's proof of the validity of his 1949 "reformation of quantum mechanics itself," work that would "elegantly rewrite quantum theory" (American National Biography; Peacock, The Quantum Revolution, 102). In this, the third paper in his pivotal reformulation of quantum mechanics, Feynman provides the mathematical "proof of the validity of the [his] rules for calculations of amplitudes in quantum electrodynamics. Feynman's paper rigorously proved that his treatment of "the problem of molecular forces from a thoroughly quantum-mechanical point of view" was accurate (DSB). Feynman had arrived "at a simple means of calculating the energy of a molecular system that continues to guide quantum chemists" (ibid).
In 1965 Feynman was awarded the Nobel Prize along with Schwinger and Tomonaga "for their fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of elementary particles" (Particle Physics, One Hundred Years of Discoveries, 113).
ALSO included is Erwin Hahn's "Spin Echoes," the first detection and report of spin echoes in nuclear magnetic resonance (NMR). Item #415
CONDITION & DETAILS: Lancaster: American Physical Society, Volume 80, October to December 1950. Bound in dark grey buckram. Ex-libris with simple Avco bookplate on the front pastedown. Very slight scuffing at edge tips; tightly and solidly bound. Bright and clean inside and out. Very good condition.