Configurable qubit circuits, superconducting processors including configurable qubit circuits, and methods of configuring thereof

A method to configure one or more superconducting qubits on a superconducting circuit including:

• a set of superconductive arms, each comprised of a trace of superconductive material having an open shape that extends between a respective first and second connection node;
• a set of Josephson junctions, each electrically arranged between the first and the second connection node of a respective one of the superconductive arms;
• a set of superconductive arm connection lines extending between one of the first and the second connection node of a superconductive arm of the set of superconductive arms and one of the first and the second connection node of another superconductive arm of the set of superconductive arms;
• and, a set of tunable connectors, each interrupting a respective superconductive arm connection line, the method comprising:
• transmitting a plurality of bias signals to the superconducting circuit, each bias signal of the plurality of bias signals transmitted to a respective tunable connector of the set of tunable connectors;
• and
• based on the plurality of bias signals, configuring a first subset of tunable connectors of the set of tunable connectors to permit current transmission therethrough, wherein an arrangement of superconductive arm connection lines that are interrupted by the first subset of tunable connectors selectively electrically couples superconductive arms of the set of superconductive arms to configure a closed superconductive path of each qubit of the one or more superconducting qubits, each closed superconductive path comprising at least:
• at least one superconductive arm of the set of superconductive arms and at least a portion of at least one Josephson junction of the set of Josephson junctions.

A method to configure one or more superconducting qubits on a superconducting circuit, the method performed by a digital processor in communication with an analog computer that comprises the superconducting circuit, the superconducting circuit including:

• a set of superconductive arms, each comprised of a trace of superconductive material having an open shape that extends between a respective first and second connection node;
• a set of Josephson junctions, each electrically arranged between the first and the second connection node of a respective one of the superconductive arms;
• a set of superconductive arm connection lines extending between one of the first and the second connection node of a superconductive arm of the set of superconductive arms and one of the first and the second connection node of another superconductive arm of the set of superconductive arms;
• and, a set of tunable connectors, each interrupting a respective superconductive arm connection line, the method comprising:
• receiving a qubit configuration specification;
• and
• instructing the analog computer to configure the superconducting circuit according to the received qubit configuration specification through transmission of a plurality of control signals, the plurality of control signals to tune a first subset of tunable connectors to permit current transmission therethrough to selectively electrically couple superconductive arms of the set of superconductive arms and establish a closed superconductive path of each qubit of the one or more superconducting qubits, each closed superconductive path comprising at least:
• at least one superconductive arm of the set of superconductive arms and at least a portion of at least one Josephson junction of the set of Josephson junctions.