Abstract: One embodiment includes a clock distribution system. The system includes at least one resonator spine that propagates a sinusoidal clock signal and at least one resonator rib conductively coupled to the at least one resonator spine and arranged as a standing wave resonator. The system also includes at least one transformer-coupling line. Each of the at least one transformer-coupling line is conductively coupled to an associated circuit and has a plurality of inductive couplings to the at least one resonator rib to inductively generate a clock current corresponding to the sinusoidal clock signal via each of the plurality of inductive couplings in an additive manner to provide functions for the associated circuit.

Abstract: A phase shifter, including two superconducting circuits, is provided. Each of the superconducting circuits includes at least one capacitor coupled in parallel to at least a Josephson junction and at least one inductor, where a respective inductance of each of the Josephson junctions (e.g., a first Josephson junction and a second Josephson junction) is a function of at least a current flow through each of the respective inductors. An effect of any or both of: (1) at least the inductance of the at least the first Josephson junction and (2) at least the inductance of the at least the second Josephson junction causes a phase change of a radio frequency signal received at a first terminal of the phase shifter to generate a phase-shifted radio frequency signal at a second terminal of the phase shifter.

Abstract: A superconducting integrated circuit including a clock distribution network for distributing a clock signal in the superconducting integrated circuit is provided. The clock distribution network may include a clock structure having unit cells, where each of the unit cells may include at least one spine and at least one stub. The clock structure may further include at least one spine connected to the at least one stub, where the at least one stub may further be inductively coupled to at least one superconducting element. The clock signal may have a wavelength. Each of the unit cells may be spaced apart from each other along the clock structure by a distance, where the distance may be less than one tenth of the wavelength.

Abstract: A phase shifter, including two superconducting circuits, is provided. Each of the superconducting circuits includes at least one capacitor coupled in parallel to at least a Josephson junction and at least one inductor, where a respective inductance of each of the Josephson junctions (e.g., a first Josephson junction and a second Josephson junction) is a function of at least a current flow through each of the respective inductors. An effect of any or both of: (1) at least the inductance of the at least the first Josephson junction and (2) at least the inductance of the at least the second Josephson junction causes a phase change of a radio frequency signal received at a first terminal of the phase shifter to generate a phase-shifted radio frequency signal at a second terminal of the phase shifter.

Abstract: One embodiment includes a clock distribution system. The system includes a standing-wave resonator configured to receive and to resonate a sinusoidal clock signal. The standing-wave resonator includes at least one anti-node portion associated with a peak current amplitude of the sinusoidal clock signal. The system also includes at least one clock line interconnecting each of the at least one anti-node portion and an associated circuit. The at least one clock line can be configured to propagate the sinusoidal clock signal for timing functions associated with the associated circuit.