Passive, lossy materials with positive index at real frequencies can be used to realize optical antimatter under complex frequency excitation. Our approach enables arbitrary complex \(\epsilon ,\,\mu\ ...

Plasma physics is the study of a state of matter comprising charged particles. Plasmas are usually created by heating a gas until the electrons become detached from their parent atom or molecule. This ...

Each new Fortnite update brings something different to shake up the battle royale game. Over the years, we’ve seen weapons, vehicles, and mechanics come and go (some of which lasted only a season or ...