Fault-tolerant scalable modular quantum computer architecture with an enhanced control of multi-mode couplings between trapped ion qubits
US11195117B2 · kind B2 · utility
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Key dates
| Filing date | Dec 15, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Sep 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2015/768
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A modular quantum computer architecture is developed with a hierarchy of interactions that can scale to very large numbers of qubits. Local entangling quantum gates between qubit memories within a single modular register are accomplished using natural interactions between the qubits, and entanglement between separate modular registers is completed via a probabilistic photonic interface between qubits in different registers, even over large distances. This architecture is suitable for the implementation of complex quantum circuits utilizing the flexible connectivity provided by a reconfigurable photonic interconnect network. The subject architecture is made fault-tolerant which is a prerequisite for scalability. An optimal quantum control of multimode couplings between qubits is accomplished via individual addressing the qubits with segmented optical pulses to suppress crosstalk in each register, thus enabling high-fidelity gates that can be scaled to larger qubit registers for quantum computation and simulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.