A high-fidelity quantum matter-link between ion-trap microchip modules.pdf (1.15 MB)
A high-fidelity quantum matter-link between ion-trap microchip modules
journal contribution
posted on 2023-06-10, 06:37 authored by M Akhtar, F Bonus, F R Lebrun-Gallagher, NI Johnson, M Siegele-Brown, S Hong, Samuel HileSamuel Hile, S A Kulmiya, Sebastian WeidtSebastian Weidt, Winfried HensingerWinfried HensingerSystem scalability is fundamental for large-scale quantum computers (QCs) and is being pursued over a variety of hardware platforms. For QCs based on trapped ions, architectures such as the quantum charge-coupled device (QCCD) are used to scale the number of qubits on a single device. However, the number of ions that can be hosted on a single quantum computing module is limited by the size of the chip being used. Therefore, a modular approach is of critical importance and requires quantum connections between individual modules. Here, we present the demonstration of a quantum matter-link in which ion qubits are transferred between adjacent QC modules. Ion transport between adjacent modules is realised at a rate of 2424 s-1 and with an infidelity associated with ion loss during transport below 7 × 10-8. Furthermore, we show that the link does not measurably impact the phase coherence of the qubit. The quantum matter-link constitutes a practical mechanism for the interconnection of QCCD devices. Our work will facilitate the implementation of modular QCs capable of fault-tolerant utility-scale quantum computation.
History
Publication status
- Published
File Version
- Published version
Journal
Nature CommunicationsISSN
2041-1723Publisher
Springer Science and Business Media LLCExternal DOI
Volume
14Page range
a531 1-8Event location
EnglandDepartment affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes