Resilient entangling gates for trapped ions
| Autor: | S. Collingbourne, D. Bretaud, A. M. Lawrence, A. E. Webb, S. Weidt, Winfried K. Hensinger, S. C. Webster, Florian Mintert |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Quantum Physics General Physics and Astronomy FOS: Physical sciences 01 natural sciences 7. Clean energy Noise (electronics) 010305 fluids & plasmas Computational physics Ion Ion cooling 0103 physical sciences Path (graph theory) Sensitivity (control systems) Ion trap 010306 general physics Quantum Physics (quant-ph) QC Quantum computer |
| ISSN: | 0031-9007 |
| Popis: | Constructing a large scale ion trap quantum processor will require entangling gate operations that are robust in the presence of noise and experimental imperfection. We experimentally demonstrate how a new type of M{\o}lmer-S{\o}rensen gate protects against infidelity caused by heating of the motional mode used during the gate. Furthermore, we show how the same technique simultaneously provides significant protection against slow fluctuations and mis-sets in the secular frequency. Since this parameter sensitivity is worsened in cases where the ions are not ground state cooled, our method provides a path towards relaxing ion cooling requirements in practical realisations of quantum computing and simulation. Comment: 9 pages, 4 figures |
| Databáze: | OpenAIRE |
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