Fungi processing audio signals. E. Coli storing images. DNA acting as logic circuits ... materials without electrical currents could be the wave of the future. Electrical engineers and computer ...

Well, we can give negative frequency a solid physical meaning by defining it properly in the context of complex, or quadrature, signals. Let's do that now. Equation (3) allows us to represent a real ...

Figure 1: Different configurations for signal regeneration using FWM ... MZM driven by the pseudo-random bit sequence. All eye diagrams shown were measured using a 2 31 − 1 pattern length.

“In systems with unequal masses like GW190412 — our first observation of this type — these overtones in the gravitational-wave signal are much louder than in our usual observations. This is ...