Illustration of Josephson harmonics (IMAGE)
Caption
Bottom part: By exciting superconducting circuits (yellow/blue) with microwave signals (red wiggly arrow), the researchers can analyze the fundamental equation that describes the Josephson tunnel junction of the circuit. Right part: The researches have observed significant deviations (red curve) from the sinusoidal standard model (green curve). Left part: schematic zoom-in of a tunnel junction consisting of two superconductors (yellow/blue) with a thin insulating barrier in-between. The large conduction channels (red loops) can be responsible for the observed deviations from the standard model.
Credit
Dennis Rieger, Patrick Winkel
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