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The Josephson effect and the requirements of causality: II. The f-sum rule

✍ Scribed by Richard A. Ferrell

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
583 KB
Volume
152
Category
Article
ISSN
0921-4534

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πŸ“œ SIMILAR VOLUMES

The Josephson effect and the requirement
The Josephson effect and the requirements of causality
✍ Richard A. Ferrell πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 518 KB

A general treatment is given of the complex conductance, a(to, 0), which describes the linear response of a Josephson junction, biased at phase ~, to an applied voltage oscillating at frequency to. By calculating the transition rate for to larger than tog, the gap frequency, we determine Re a(to, Β’0

On the f sum rule and its extensions
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The f sum rule is derived in a nonrelativistic frame and connected, via Ward identities, to the twophoton term of the Compton scattering. A generalisation to isospin symmetry in the nuclear case is discussed and linked to the meson exchange currents. The extension to a fully relativistic theory is t

The F/D ratio and meson–baryon couplings
The F/D ratio and meson–baryon couplings from QCD sum rules II
✍ Hungchong Kim; Takumi Doi; Makoto Oka; Su Houng Lee πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 257 KB

Using QCD sum rules, we compute the diagonal meson-baryon couplings, Ο€NN, Ξ·NN, Ο€ , Ξ· , Ο€ and Ξ· , from the baryon-baryon correlation function with a meson: i d 4 x e iqβ€’x 0|T J B (x) JB (0) |M(p) . The calculations are performed to leading order in p Β΅ by considering the two separate Dirac structures