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.

Abstract: One example includes an RQL circuit simulation system. The system includes a circuit design tool that facilitates user inputs to design an RQL circuit design comprising at least one predetermined RQL circuit design component. The system also includes a memory system that stores the RQL circuit design and an RQL component library comprising predetermined RQL circuit design components from which the at least one predetermined RQL circuit design component is selected. Each of the predetermined RQL circuit design components includes predetermined RQL component metrics associated with performance of the respective one of the predetermined RQL circuit design components. The system also includes a circuit simulator configured to compile performance metrics associated with the RQL circuit design based on the predetermined RQL component metrics associated with the respective at least one of the predetermined RQL circuit design components and to simulate the RQL circuit design based on the performance metrics.

Abstract: One embodiment of the invention includes a method for generating a Reciprocal Quantum Logic (RQL) circuit design via a synthesis tool. The method includes providing data associated with behavior and constraints of the RQL circuit design and a component library to the synthesis tool. The method also includes generating an RQL netlist circuit comprising a flip-flop device placeholder and a circuit system coupled to at least one of an input and an output of the flip-flop device placeholder via the synthesis tool based on the data and a component library. The method also includes separating the circuit system into circuit subsystems that are each associated with a separate respective phase of a clock signal via the synthesis tool based on inputs. The method further includes removing the flip-flop device placeholder from the RQL netlist circuit via the synthesis tool to generate the RQL circuit design from the RQL netlist circuit.

Abstract: An isochronous receiver system is provided and includes a single flux quantum (SFQ) receiver to receive a data signal from a transmission line. The single flux quantum receiver then converts the data signal to an SFQ signal. The system also includes a converter system to convert the SFQ signal to a reciprocal quantum logic (RQL) signal and to phase-align the RQL signal with a sampling phase of an AC clock signal.

Abstract: One example includes an RQL circuit simulation system. The system includes a circuit design tool that facilitates user inputs to design an RQL circuit design comprising at least one predetermined RQL circuit design component. The system also includes a memory system that stores the RQL circuit design and an RQL component library comprising predetermined RQL circuit design components from which the at least one predetermined RQL circuit design component is selected. Each of the predetermined RQL circuit design components includes predetermined RQL component metrics associated with performance of the respective one of the predetermined RQL circuit design components. The system also includes a circuit simulator configured to compile performance metrics associated with the RQL circuit design based on the predetermined RQL component metrics associated with the respective at least one of the predetermined RQL circuit design components and to simulate the RQL circuit design based on the performance metrics.

Abstract: One example includes an RQL circuit simulation system. The system includes a circuit design tool that facilitates user inputs to design an RQL circuit design comprising at least one predetermined RQL circuit design component. The system also includes a memory system that stores the RQL circuit design and an RQL component library comprising predetermined RQL circuit design components from which the at least one predetermined RQL circuit design component is selected. Each of the predetermined RQL circuit design components includes predetermined RQL component metrics associated with performance of the respective one of the predetermined RQL circuit design components. The system also includes a circuit simulator configured to compile performance metrics associated with the RQL circuit design based on the predetermined RQL component metrics associated with the respective at least one of the predetermined RQL circuit design components and to simulate the RQL circuit design based on the performance metrics.

Abstract: A device including an array of superconducting logic cells, where each of the superconducting logic cells is configured to receive at least one input and provide at least one output, is provided. Each of the superconducting logic cells includes at least one Josephson junction, whose state changes based on at least a biasing condition caused by a phase of a first clock or a phase of a second clock. The array of the superconducting logic cells is configured to perform at least one operation based at least on a connection arrangement of the array of the superconducting logic cells.

Abstract: One embodiment of the invention includes a method for generating a Reciprocal Quantum Logic (RQL) circuit design via a synthesis tool. The method includes providing data associated with behavior and constraints of the RQL circuit design and a component library to the synthesis tool. The method also includes generating an RQL netlist circuit comprising a flip-flop device placeholder and a circuit system coupled to at least one of an input and an output of the flip-flop device placeholder via the synthesis tool based on the data and a component library. The method also includes separating the circuit system into circuit subsystems that are each associated with a separate respective phase of a clock signal via the synthesis tool based on inputs. The method further includes removing the flip-flop device placeholder from the RQL netlist circuit via the synthesis tool to generate the RQL circuit design from the RQL netlist circuit.

Abstract: A device including an array of superconducting logic cells, where each of the superconducting logic cells is configured to receive at least one input and provide at least one output, is provided. Each of the superconducting logic cells includes at least one Josephson junction, whose state changes based on at least a biasing condition caused by a phase of a first clock or a phase of a second clock. The array of the superconducting logic cells is configured to perform at least one operation based at least on a connection arrangement of the array of the superconducting logic cells.

Abstract: One embodiment of the invention includes a method for generating a Reciprocal Quantum Logic (RQL) circuit design via a synthesis tool. The method includes providing data associated with behavior and constraints of the RQL circuit design and a component library to the synthesis tool. The method also includes generating an RQL netlist circuit comprising a flip-flop device placeholder and a circuit system coupled to at least one of an input and an output of the flip-flop device placeholder via the synthesis tool based on the data and a component library. The method also includes separating the circuit system into circuit subsystems that are each associated with a separate respective phase of a clock signal via the synthesis tool based on inputs. The method further includes removing the flip-flop device placeholder from the RQL netlist circuit via the synthesis tool to generate the RQL circuit design from the RQL netlist circuit.

Abstract: One example includes an RQL circuit simulation system. The system includes a circuit design tool that facilitates user inputs to design an RQL circuit design comprising at least one predetermined RQL circuit design component. The system also includes a memory system that stores the RQL circuit design and an RQL component library comprising predetermined RQL circuit design components from which the at least one predetermined RQL circuit design component is selected. Each of the predetermined RQL circuit design components includes predetermined RQL component metrics associated with performance of the respective one of the predetermined RQL circuit design components. The system also includes a circuit simulator configured to compile performance metrics associated with the RQL circuit design based on the predetermined RQL component metrics associated with the respective at least one of the predetermined RQL circuit design components and to simulate the RQL circuit design based on the performance metrics.

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.

Abstract: One embodiment of the invention includes a method for generating a Reciprocal Quantum Logic (RQL) circuit design via a synthesis tool. The method includes providing data associated with behavior and constraints of the RQL circuit design and a component library to the synthesis tool. The method also includes generating an RQL netlist circuit comprising a flip-flop device placeholder and a circuit system coupled to at least one of an input and an output of the flip-flop device placeholder via the synthesis tool based on the data and a component library. The method also includes separating the circuit system into circuit subsystems that are each associated with a separate respective phase of a clock signal via the synthesis tool based on inputs. The method further includes removing the flip-flop device placeholder from the RQL netlist circuit via the synthesis tool to generate the RQL circuit design from the RQL netlist circuit.