A quantum processor based on coherent transport of entangled atom arrays.
A quantum processor based on coherent transport of entangled atom arrays.
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DOI:
10.1038/s41586-022-04592-6
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发表时间:
2022-04
期刊:
影响因子:
64.8
通讯作者:
中科院分区:
文献类型:
--
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The ability to engineer parallel, programmable operations between desired qubits within a quantum processor is key for building scalable quantum information systems. In most state-of-the-art approaches, qubits interact locally, constrained by the connectivity associated with their fixed spatial layout. Here we demonstrate a quantum processor with dynamic, non-local connectivity, in which entangled qubits are coherently transported in a highly parallel manner across two spatial dimensions, between layers of single- and two-qubit operations. Our approach makes use of neutral atom arrays trapped and transported by optical tweezers; hyperfine states are used for robust quantum information storage, and excitation into Rydberg states is used for entanglement generation. We use this architecture to realize programmable generation of entangled graph states, such as cluster states and a seven-qubit Steane code state. Furthermore, we shuttle entangled ancilla arrays to realize a surface code state with thirteen data and six ancillary qubits and a toric code state on a torus with sixteen data and eight ancillary qubits. Finally, we use this architecture to realize a hybrid analogue–digital evolution and use it for measuring entanglement entropy in quantum simulations, experimentally observing non-monotonic entanglement dynamics associated with quantum many-body scars. Realizing a long-standing goal, these results provide a route towards scalable quantum processing and enable applications ranging from simulation to metrology. A quantum processer is realized using arrays of neutral atoms that are transported in a parallel manner by optical tweezers during computations, and used for quantum error correction and simulations.
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影响因子:
0.9
作者:
CARRUTHERS, P;NIETO, MM
通讯作者:
NIETO, MM
影响因子:
64.8
作者:
Cirac, JI;Zoller, P
通讯作者:
Zoller, P
影响因子:
64.8
作者:
Google Quantum AI
通讯作者:
Google Quantum AI
影响因子:
64.8
作者:
Erhard, Alexander;Poulsen Nautrup, Hendrik;Monz, Thomas
通讯作者:
Monz, Thomas
影响因子:
1.8
作者:
Couvert, A.;Kawalec, T.;Guery-Odelin, D.
通讯作者:
Guery-Odelin, D.