| 释义 |
self-ˈenergy Physics.
[self- 5 b.]
The energy possessed by a particle in isolation from other particles and fields; the energy of interaction of a particle, quasi-particle, or current with its own field.
1883O. Heaviside in Electrician 10 Mar. 390/1 We have next..to consider the potential energy of a current system on itself, as distinguished from its energy with respect to another system. The last being called the mutual energy, we may for brevity term the former the self-energy. 1933Nature 30 Dec. 1004/2 The use of the classical function L gives infinite values of self energy and other physical quantities which are, in fact, certainly finite. 1956E. H. Hutten Lang. Mod. Physics iii. 97 The electron as a point-particle would possess infinte self-energy: this must occur when a finite charge is concentrated into a point—thus making the charge density, or charge per unit volume, infinite. 1962Corson & Lorrain Introd. Electromagn. Fields vi. 243 The first two terms on the right are self-energies arising from the interaction of each current with its own field. 1977Dædalus Fall 25 Just as the exchange of virtual photons between two electrons produces an energy of interaction between them, so also in quantum field theory the emission of virtual photons and their reabsorption by the same electron produces a self-energy. |