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81.
Richard Friedberg 《Optics Communications》2009,282(15):3089-3099
A rich variety of angular distributions in the cooperative emission from a sphere of inverted N two-level atoms are shown to result from the eigenstructure of the complex kernel of scalar photon theory exp(ik0R)/(ik0R). This angular distribution is sensitive both to the size of the sphere and to the instant of observation of the emission. 相似文献
82.
Some elementary inequalities for functional with functional derivatives of given sign are presented and proved. These are then applied to the study of Green's functions for diffusion processes in a medium with sources and sinks (or alternately to Green's functions for the Schrödinger operator). The resulting inequalities are shown to include as quite special cases the super and sub-additive inequalities of potential theory. One consequence of the generalization is that scattering length is also shown to have sub-additive properties.This research was supported in part by the National Science Foundation and the U.S. Atomic Energy Commission. 相似文献
83.
DNA REPAIR OF ULTRAVIOLET-IRRADIATED BACTERIOPHAGE T4 总被引:4,自引:0,他引:4
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We extend the T violating model of the paper on ``Hidden symmetry of the CKM and neutrino-mapping matrices" by assuming its T-violating phases χ↑ and χ↓ to be large and the same, with χ=χ↑=χ↓. In this case, the model has 9 相似文献
88.
R. Beach S. R. Hartmann R. Friedberg J. Langelaar D. Bebelaar J. D. W. van Voorst E. A. Whittaker A. Z. Genack R. O. Brickman A. Schenzle W. E. Henke H. L. Selzle E. W. Schlag S. H. Lin S. Wallace M. Ivanco J. Hager W. Sharfin H. Walther S. Chu A. P. Mills Jr P. Bucksbaum E. Commins L. Hunter M. C. Downer A. Bivas N. Bloembergen S. C. Rand L. -S. Lee A. L. Schawlow 《Applied physics. B, Lasers and optics》1982,28(2-3):274-282
89.
We use the theory of quadratic base change to derive some new identities involving the Ramanujan -function, and show how the Ramanujan congruence (n) 11(n) (mod 691) follows. 相似文献
90.
We comment on and correct recent works which 1) discuss the effect of the rotating wave app of radiative frequency shifts and 2) calculate level and frequency shifts by dispersion relations. 相似文献