Nature - 15.08.2019
reSeArCH Letter Extended Data Fig. 8 | Diagonal two-point spin correlations. Spin correlations in the central region (see lattic ...
Letter reSeArCH Extended Data Fig. 9 | NN correlations around mobile or pinned doublons. a, Two-point NN correlations in the cen ...
Letter https://doi.org/10.1038/s41586-019-1428-4 Global entangling gates on arbitrary ion qubits Yao Lu1,3*, Shuaining Zhang1,3, ...
reSeArCH Letter equation ( 1 ) using the time evolution of equation ( 2 ), we have to close all of the motional trajectories and ...
Letter reSeArCH feature of the global entangling gate, that is, whether it can be applied on any subset of qubits that are addre ...
reSeArCH Letter Online content Any methods, additional references, Nature Research reporting summaries, source data, statements ...
Letter reSeArCH Sackett, C. A. et al. Experimental entanglement of four particles. Nature 404 , 256–259 (2000). Figgatt, C. et ...
reSeArCH Letter MEthodS Comparison of the single-mode and multimode approaches. We compare the single-mode and multimode approac ...
Letter reSeArCH Extended Data Fig. 1 | Comparison between gate durations of single- and multi-mode approaches. For the given tra ...
reSeArCH Letter Extended Data Fig. 2 | Side view of the experimental ion-trap system. The figure shows the structure of the blad ...
Letter reSeArCH Extended Data Fig. 3 | Motional trajectories in phase space for the global four-qubit entangling gate. Because w ...
reSeArCH Letter Extended data table 1 | Pulse scheme for the global three-qubit entangling gate Here, Ωjmax refers to the maxima ...
Letter reSeArCH Extended data table 2 | Pulse scheme for the global four-qubit entangling gate The definitions of Ωjmax and φj,k ...
Letter https://doi.org/10.1038/s41586-019-1427-5 Parallel entangling operations on a universal ion-trap quantum computer C. Figg ...
Letter reSeArCH there is no residual qubit-motion entanglement. For each of the M desired entangled pairs, we require χij = π/4 ...
reSeArCH Letter simultaneously on the pair (1, 4), with ion 1 acting as the control and ion 4 acting as the target, and on the p ...
Letter reSeArCH ( )=−2(MM=OM) 2 M 2 (^22) spin–spin interactions to control and 2MN spin–motional entanglements to close. Scalin ...
reSeArCH Letter Green, T. J. & Biercuk, M. J. Phase-modulated decoupling and error suppression in qubit-oscillator systems. ...
Letter reSeArCH MEthodS Experimental setup and error sources. The experiments are performed on a lin- ear chain of five trapped^ ...
reSeArCH Letter Extended Data Fig. 1 | Additional experimental gate fidelities for parallel two-qubit entangling gates. a–d, Par ...
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