Quantum computing in a three-dimensional device lattice
AssigneeRigetti & Co, LLC
InventorsWilliam J. Zeng, Chad Tyler Rigetti
Life of this patent
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Abstract
In a general aspect, information is encoded in data qubits in a three-dimensional device lattice. The data qubits reside in multiple layers of the three-dimensional device lattice, and each layer includes a respective two-dimensional device lattice. A three-dimensional color code is applied in the three-dimensional device lattice to detect errors in the data qubits residing in the multiple layers. A two-dimensional color code is applied in the two-dimensional device lattice in each respective layer to detect errors in one or more of the data qubits residing in the respective layer.
Claims28
A quantum computing system comprising:
- a three-dimensional device lattice comprising multiple layers of qubit devices, each layer comprising a respective two-dimensional device lattice, and the two-dimensional device lattice in each layer comprising:
- a first subset of qubit devices connected to devices in a first, distinct layer through out-of-plane connections extending in a first direction;
- a second subset of qubit devices connected to devices in a second, distinct layer through out-of-plane connections extending in a second, opposite direction;
- and
- a third subset of qubit devices that have only in-plane connections;
- and
- a control system communicably coupled to the three-dimensional device lattice and configured to control the qubit devices in the three-dimensional device lattice.
A quantum computing method for operating a quantum computing system, the quantum computing system comprising:
- a control system;
- and
- a three-dimensional device lattice comprising multiple layers of qubit devices, each layer comprising a respective two-dimensional device lattice, and the two-dimensional device lattice in each layer comprising:
- a first subset of qubit devices connected to devices in a first, distinct layer through out-of-plane connections extending in a first direction;
- a second subset of qubit devices connected to devices in a second, distinct layer through out-of-plane connections extending in a second, opposite direction;
- and
- a third subset of qubit devices that have only in-plane connections,
- the method comprising, by operation of the control system, controlling the qubit devices in the three-dimensional device lattice.
Dependencies are inferred from the claim text.