Quantum phase-charge coupled device
AssigneeD-Wave Systems Inc.
InventorsAlexandre Blais, Jeremy P. Hilton
Life of this patent
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Abstract
A method for performing a quantum computing entanglement operation between a phase qubit and a charge qubit. A coherent connection between the phase qubit and the charge qubit is provided. The coherent connection allows the quantum state of the phase qubit and the quantum state of the charge qubit to interact with each other. The coherent connection is modulated for a duration te. The phase qubit is connected to the charge qubit during at least a portion of the duration te in order to controllably entangle the quantum state of the phase qubit and the quantum state of the charge qubit.
Claims29
A method for performing a quantum computing entanglement operation between a phase qubit and a charge qubit, the method comprising:
- providing a coherent connection between said phase qubit and said charge qubit that allows the quantum state of said phase qubit and the quantum state of said charge qubit to interact with each other;
- and
- modulating said coherent connection for a duration te, wherein said phase qubit is connected to said charge qubit during at least a portion of said duration te in order to controllably entangle the quantum state of said phase qubit and the quantum state of said charge qubit.
A method for entangling qubits in a heterogeneous quantum register, wherein said heterogeneous quantum register includes a plurality of phase qubits and a plurality of charge qubits, the method comprising:
- providing a quantum register having a bus, wherein each qubit in said heterogeneous quantum register is configured to be coherently connected and disconnected to said bus;
- selecting a first qubit from said plurality of qubits in said heterogeneous quantum register;
- coupling said first qubit to a mesoscopic charge device for a duration t1;
- selecting a second qubit from said plurality of qubits in said heterogeneous quantum register;
- and
- coupling said second qubit to said mesoscopic charge device for a duration t2.
Dependencies are inferred from the claim text.