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Scientists reveal a four-dimensional twist on photonic quantum logic

A pair of photons enters an optical maze, and sometimes they leave as something new. Not new in the everyday sense, since both were still photons when they came out. But new in the way they share ...
EDN

Using isolated ADCs and an XNOR logic gate as a multiplier to measure active power

Multiplying two analog signals involves the use of analog multipliers, usually implemented by using log and antilog circuit blocks or the Gilbert cell. Today, the most common technique used to ...