ZERO-POINT ENERGY OF A CONDUCTING SPHERICAL SHELL
نویسندگان
چکیده
منابع مشابه
On the Zero-Point Energy of a Conducting Spherical Shell
The zero-point energy of a conducting spherical shell is evaluated by imposing boundary conditions on the potential Aμ, and on the ghost fields. The scheme requires that temporal and tangential components of Aμ perturbations should vanish at the boundary, jointly with the gauge-averaging functional, first chosen of the Lorenz type. Gauge invariance of such boundary conditions is then obtained p...
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A conducting spherical shell with a circular orifice of half angle θ0 is at electric potential V0. Show that the difference between the charge densities on the inner and outer surfaces is independent of position, and estimate the ratio of the electric charge on the inner surface to that on the outer. Correct results can be inferred from “elementary” arguments based on superposition, and more “e...
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The Casimir energy for a conducting spherical shell of radius a is computed using a direct mode summation approach. An essential ingredient is the implementation of a recently proposed method based on Cauchy's theorem for an evaluation of the eigenfrequencies of the system. It is shown, however, that this earlier calculation uses an improper set of modes to describe the waves exterior to the sp...
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A review of recent developments in the study of the Zero Point Energy (ZPE) is made. The origin and behavior of the electromagnetic fields making up the vacuum ZPE is elucidated. From this it is deduced that the ZPE should increase with time even in a static universe such as Narliker and Arp propose. The small oscillations that a static cosmos undergoes will add a variable component to the over...
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Thanks to their well-pronounced shell structures, spherical Coulomb crystals possess zero-point vibrational energies {epsilon(SCC)(N)} that are dominated by one component. This shell-additive contribution, which arises from particle motions within individual shells, is readily modeled with a superposition of modified Thomson problems with no adjustable parameters. On the other hand, the negativ...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 1999
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x99000154