Journal
PHYSICAL REVIEW APPLIED
Volume 15, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.15.034055
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Funding
- NSFC [12075145]
- SMSTC [2019SHZDZX01ZX04, 18010500400, 18ZR1415500]
- Program for Eastern Scholar, Spanish Government (MCIU/AEI/FEDER, UE) [PGC2018-095113-B-I00]
- Basque Government [IT98616]
- QMiCS of the EU Flagship on Quantum Technologies [820505, 820363]
- EU FET Open Grant Quromorphic [828826]
- UPV/EHU Grant EHUrOPE
- Ramon y Cajal program [RYC2017-22482]
- Huawei HiQ funding for developing QAOASTA [YBN2019115204]
- Spanish MICINN [EUR2020-112117]
- UPV/EHU through the Grant EHUrOPE
- Ramon y Cajal program of the Spanish MICINN [RYC2018-025197-I]
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In this study, a pulsed dynamical decoupling technique using random or correlated pulse phases is incorporated to enhance the robustness of entangling spin-spin dynamics in trapped ions. Originally conceived for nuclear spin detection in nuclear magnetic resonance, this technique demonstrates applicability for robust quantum-information processing in trapped-ion settings.
Quantum platforms based on trapped ions are the main candidates to build a quantum hardware with computational capacities that largely surpass those of classical devices. Among the available control techniques in these setups, pulsed dynamical decoupling (pulsed DD) has been revealed as a useful method to process the information encoded in ion registers, whilst minimizing the environmental noise over them. In this work, we incorporate a pulsed DD technique that uses random pulse phases, or correlated pulse phases, to significantly enhance the robustness of entangling spin-spin dynamics in trapped ions. This procedure was originally conceived in the context of nuclear magnetic resonance for nuclear spin detection purposes, and here we demonstrate that the same principles apply for robust quantum-information processing in trapped-ion settings.
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