John Clive Ward (4 results)

No Binding. Condition: Very Good. 1st Edition. A lot of eight VG or better original release 8 x 10 stills. Photographic Image.

SOFTCOVER. Condition: Fine. 1st Edition. Tall 4to. in colour printed stiff glossy card covers, 48pp, illustrations in text, etc . [CONDITION: A well preserved FINE clean and tight unmarked copy (hint of tanning to leaves) ] . . . We always ship in STRONG PROTECTIVE CARD PARCELS.

SOFTCOVER. Condition: Fine. 1st Edition. Tall 4to. in colour printed stiff glossy card covers, 48pp, illustrations in text, etc . [CONDITION: An extremely well preserved FINE very clean and tight unmarked copy (merest hint of tanning to leaves) ] . . . We always ship in STRONG PROTECTIVE CARD PARCELS.

Soft cover. Condition: Very Good. 1st Edition. John Clive Ward, "Renormalization Theory of the Interactions of Nucleons, Mesons, and Photons" in Physical Review 84 No. 5, December 1, 1951, pp 897-902 in the issue of pp 869-1078. Original wrappers. Spine and cover edges all considerably sunned; also, there's a small chip out of the bottom of the spine, otherwise a Fine copy. VG __+__ "In quantum field theory, a WardTakahashi identity is an identity between correlation functions that follows from the global or gauge symmetries of the theory, and which remains valid after renormalization. The WardTakahashi identity of quantum electrodynamics was originally used by John Clive Ward [this paper]and Yasushi Takahashi to relate the wave function renormalization of the electron to its vertex renormalization factor F1(10), guaranteeing the cancellation of the ultraviolet divergence to all orders of perturbation theory. Later uses include the extension of the proof of Goldstone's theorem to all orders of perturbation theory. The WardTakahashi identity is a quantum version of the classical Noether's theorem, and any symmetries in a quantum field theory can lead to an equation of motion for correlation functions. This generalized sense should be distinguished when reading literature, such as Michael Peskin and Daniel Schroeder's textbook from the original sense of the Ward identity."--Wikipedia ("Ward-Takahashi Identity").