Pendry_step.pdf (1.32 MB)
Air conditioning for photons
preprintposted on 2023-11-03, 06:31 authored by John Pendry
A simple time dependent system is solved analytically taking the form of a moving step-up or step-down in refractive index. We demonstrate that step motion, by a process of compression or expansion, adds or subtracts energy from radiation passing through, so heating or cooling the photons.