Hybrid bacon-shor surface codes in a concatenated cat-qubit architecture
US11983601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2021 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Oct 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N60/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hybrid Bacon-Shor surface code is implemented using a fault tolerant quantum computer comprising hybrid acoustic-electric qubits. A control circuit includes an asymmetrically threaded superconducting quantum interference devices (ATS) that excites phonons in a mechanical resonator by driving a storage mode of the mechanical resonator and dissipates phonons from the mechanical resonator via an open transmission line coupled to the control circuit. The hybrid Bacon-Shor surface code only couples four phononic modes per given ATS, reducing cross-talk as compared to other systems that couple more phononic modes per ATS. Also, measurements are performed such that three parity measurements are taken between a phononic readout mode and a transmon qubit in a given syndrome measurement cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.