PARAMETRICALLY ACTIVATED QUANTUM LOGIC GATES

• Main Authors: SETE, Eyob A, DA SILVA, Marcus Palmer, DIDIER, Nicolas, ABRAMS, Deanna Margo, REAGOR, Matthew J, RIGETTI, Chad Tyler, TEZAK, Nikolas Anton, HONG, Sabrina Sae Byul, PAPAGEORGE, Alexander, SIVARAJAH, Prasahnt, CALDWELL, Shane Arthur, RYAN, Colm Andrew
• Format: Patent
• Language: English; French; German
• Published: 29.04.2020
• Subjects: BASIC ELECTRONIC CIRCUITRY; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRICITY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; PERFORMING OPERATIONS; PHYSICS; PULSE TECHNIQUE; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.