Targeting molecular quantum memory with embedded error correction.
Authors
Lockyer, Selena JChiesa, Alessandro; orcid: 0000-0003-2955-3998
Timco, Grigore A; orcid: 0000-0003-0966-0315
McInnes, Eric J L
Bennett, Tom S
Vitorica-Yrezebal, Inigo J; orcid: 0000-0001-8806-150X
Carretta, Stefano; orcid: 0000-0002-2536-1326
Winpenny, Richard E P; orcid: 0000-0002-7101-3963
Publication Date
2021-06-02
Metadata
Show full item recordAbstract
The implementation of a quantum computer requires both to protect information from environmental noise and to implement quantum operations efficiently. Achieving this by a fully fault-tolerant platform, in which quantum gates are implemented within quantum-error corrected units, poses stringent requirements on the coherence and control of such hardware. A more feasible architecture could consist of connected memories, that support error-correction by enhancing coherence, and processing units, that ensure fast manipulations. We present here a supramolecular {Cr<sub>7</sub>Ni}-Cu system which could form the elementary unit of this platform, where the electronic spin 1/2 of {Cr<sub>7</sub>Ni} provides the processor and the naturally isolated nuclear spin 3/2 of the Cu ion is used to encode a logical unit with embedded quantum error-correction. We demonstrate by realistic simulations that microwave pulses allow us to rapidly implement gates on the processor and to swap information between the processor and the quantum memory. By combining the storage into the Cu nuclear spin with quantum error correction, information can be protected for times much longer than the processor coherence.Citation
Chemical science, volume 12, issue 26, page 9104-9113Type
articleDescription
From Europe PMC via Jisc Publications RouterHistory: epub 2021-06-02, ppub 2021-07-01
Publication status: Published
Funder: European Research Council; Grant(s): 786734, 862893