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 {Cr7Ni}-Cu system which could form the elementary unit of this platform, where the electronic spin 1/2 of {Cr7Ni} 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.

Targeting molecular quantum memory with embedded error correction / Lockyer, S. J.; Chiesa, A.; Timco, G. A.; Mcinnes, E. J. L.; Bennett, T. S.; Vitorica-Yrezebal, I. J.; Carretta, S.; Winpenny, R. E. P.. - In: CHEMICAL SCIENCE. - ISSN 2041-6520. - 12:26(2021), pp. 9104-9113. [10.1039/d1sc01506k]

Targeting molecular quantum memory with embedded error correction

Chiesa A.;Carretta S.;
2021-01-01

Abstract

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 {Cr7Ni}-Cu system which could form the elementary unit of this platform, where the electronic spin 1/2 of {Cr7Ni} 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.
2021
Targeting molecular quantum memory with embedded error correction / Lockyer, S. J.; Chiesa, A.; Timco, G. A.; Mcinnes, E. J. L.; Bennett, T. S.; Vitorica-Yrezebal, I. J.; Carretta, S.; Winpenny, R. E. P.. - In: CHEMICAL SCIENCE. - ISSN 2041-6520. - 12:26(2021), pp. 9104-9113. [10.1039/d1sc01506k]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2897506
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 20
social impact