No abstract

Hyperbolic metamaterials in which the dielectric component exhibits critical opalescence have been considered. It appears that fluctuations of the effective refractive index in these materials are strongly enhanced and so 'virtual electromagnetic black holes' may appear as a result of these fluctuations. Therefore, the behaviour of 'optical space' inside hyperbolic metamaterials looks somewhat similar to the behaviour of real physical space-time on the Planck scale.

No abstract

We have investigated the noise spectral density of nanowire and planar FETs. It was experimentally found that the nanowire FET shows lower noise density than the planar FET. By a simulation using Poisson-Schrödinger equations, the distribution of inversion carriers is located further from the interface due to quantum confinement, which well explains the observed lower noise density of nanowire FET.