Back to results
US 11,777,478 B2Granted
DC conversion of half- to quarter-wave resonators for crosstalk suppression in superconducting qubits
AssigneeInternational Business Machines Corporation
InventorsSalvatore Bernardo Olivadese, Patryk Gumann, Sean Hart, April Carniol
Life of this patent
Estimating the term…
Abstract
A quantum circuit includes a first qubit and a second qubit. A bus resonator transmission line is coupled between the first qubit and the second qubit. A readout bus is coupled to the first qubit. A switch is coupled to the bus resonator transmission line between the first qubit and the second qubit.
Claims18
A quantum circuit comprising:
- a first qubit;
- a second qubit;
- a bus resonator transmission line coupled between the first qubit and the second qubit;
- a readout bus coupled to the first qubit;
- and
- a switch coupled to the bus resonator transmission line between the first qubit and the second qubit, wherein the switch is at a location of a zero electric field of the bus resonator transmission line.
3 more elements
A quantum circuit comprising:
- a first qubit;
- a second qubit;
- a bus resonator transmission line coupled between the first qubit and the second qubit, a readout bus coupled to the first qubit;
- and
- a switch coupled to the bus resonator transmission line between the first qubit and the second qubit, wherein the switch is at a location of a maximum magnetic field of the bus resonator transmission line.
2 more elements
A quantum circuit comprising:
- a first qubit;
- a second qubit;
- a bus resonator transmission line coupled between the first qubit and the second qubit;
- a readout bus coupled to the first qubit;
- and
- a switch coupled to the bus resonator transmission line between the first qubit and the second qubit, wherein the readout bus is coupled to the switch and operative to turn ON and/or OFF the resonator transmission line by way of a DC control signal.
3 more elements
A method of controlling crosstalk in a quantum circuit, comprising:
- providing a first qubit;
- providing a second qubit;
- coupling a bus resonator transmission line between the first qubit and the second qubit;
- coupling a readout bus to the first qubit;
- splitting the bus resonator transmission line with a switch coupled to the readout bus between the first qubit and the second qubit;
- and
- coupling the readout bus to the switch to turn ON and/or OFF the bus resonator transmission line by way of a DC control signal.
4 more elements
Dependencies are inferred from the claim text.