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Reducing qubit frequency collisions through lattice design

專利號
US12137619B2
公開日期
2024-11-05
申請人
International Business Machines Corporation(US NY Armonk)
發(fā)明人
Jerry M. Chow; Easwar Magesan; Matthias Steffen; Jay M. Gambetta; Maika Takita
IPC分類
H10N60/80; G06N10/00; H10N60/12
技術領域
qubits,qubit,vertices,lattice,dodecagons,octagons,structures,edges,hexagons,target
地域: NY NY Armonk

摘要

Lattice arrangements for quantum qubits are described. A lattice arrangement can comprise adjacent structures having vertices connected by edges. The qubits can be positioned on the vertices. A qubit in the lattice arrangement directly connects to not more than three other qubits, or connects to another qubit via a coupling qubit on an edge between two qubits on a vertex. The adjacent structures can comprise hexagons, dodecagons or octagons. A superconducting qubit lattice can comprise superconducting target qubits and superconducting control qubits. The superconducting qubit lattice can comprise adjacent structures having vertices connected by edges, with target qubits positioned on the vertices and control qubits positioned on the edges. Logic operations between adjacent superconducting target and control qubits can be implemented by driving the superconducting control qubit at or near the frequency of the superconducting target qubit.

說明書

The adjacent structures can comprise hexagons having superconducting control qubits on the edges between the vertices of the hexagons. The adjacent structures can comprise dodecagons having superconducting control qubits on the edges between the vertices of the dodecagons. The adjacent structures can comprise octagons having superconducting control qubits on the edges between the vertices of the octagons. The adjacent structures can comprise rectangles having superconducting control qubits on the edges between the vertices of the rectangles.

One or more aspects are directed towards a superconducting qubit lattice. The superconducting qubit lattice can comprise superconducting qubits, in which the superconducting qubit lattice comprises adjacent structures having vertices connected by edges. The superconducting qubits can be positioned on the vertices. A superconducting qubit connects to not more than three other superconducting qubits.

The adjacent structures can comprise hexagons, dodecagons or octagons. The superconducting qubit can indirectly connect to the not more than three other superconducting qubits via a coupling superconducting qubit. A first superconducting qubit can connect to a second superconducting qubit via a coupling superconducting qubit on an edge between the first superconducting qubit on a first vertex and the second superconducting qubit on a second vertex.

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