11. Is a dimensionless localization index that expresses electron localization with respect to the uniform electron gas . 12. At the plasma frequency and above, dielectrics behave as ideal metals, with electron gas behavior. 13. The electron gas in ordinary metals and in the interior of white dwarf stars are two examples. 14. Thus, plasmons are collective ( a discrete number ) oscillations of the free electron gas density. 15. For an application of this integral see Two line charges embedded in a plasma or electron gas . 16. For applications of these integrals see Magnetic interaction between current loops in a simple plasma or electron gas . 17. For applications of this integral see Magnetic interaction between current loops in a simple plasma or electron gas . 18. Examples of static, motionless, interacting currents are Coulomb potential in a simple plasma or electron gas . 19. Consider a tube of current rotating in a magnetic field embedded in a simple plasma or electron gas . 20. The Bloch Gr�neisen temperature has been observed experimentally in a two-dimensional electron gas and in graphene.
