Systems and devices for quantum processor architectures

摘要

Quantum processor architectures employ unit cells tiled over an area. A unit cell may include first and second sets of qubits where each qubit in the first set crosses at least one qubit in the second set. Angular deviations between qubits in one set may allow qubits in the same set to cross one another. Each unit cell is positioned proximally adjacent at least one other unit cell. Communicatively coupling between qubits is realized through respective intra-cell and inter-cell coupling devices.

主权项

1. A quantum processor comprising:
a plurality of unit cells tiled over an area such that each unit cell is positioned adjacent to at least one other unit cell, each unit cell comprising:
a first set of qubits and a second set of qubits, each qubit in the first set and the second set of qubits comprising:
a respective loop of material that is superconductive at a critical temperature; andat least one respective Josephson Junction that interrupts the loop of material, wherein a first portion of the loop of material of a first qubit in the first set of qubits is oriented at an angle greater than zero degrees and less than ninety degrees to at least a portion of the loop of material of at least one qubit in the second set of qubits, the first qubit in the first set of qubits crossing at least one qubit in the second set of qubits, and the first portion of the first qubit in the first set of qubits crossing at least one other qubit in the first set of qubits;a first set of intra-cell coupling devices, wherein each coupling device in the first set of intra-cell coupling devices is positioned proximate a respective point where a respective one of qubits in the first set of qubits crosses one of the qubits in the second set of qubits and provides controllable communicative coupling between the qubit in the first set of qubits and the respective qubit in the second set of qubits; and a second set of intra-cell coupling devices, wherein each coupling device in the second set of intra-cell coupling devices is positioned proximate a respective point at which each at least one qubit in the first set of qubits crosses the at least one other qubit in the first set of qubits and provides controllable communicative coupling between the at least one qubit in the first set of qubits and the at least one other qubit in the first set of qubits.