Fermion-Parity-Based Computation and Its Majorana-Zero-Mode Implementation.
Fermion-Parity-Based Computation and Its Majorana-Zero-Mode Implementation.
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DOI:
10.1103/physrevlett.128.180504
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发表时间:
2021-10
影响因子:
8.6
通讯作者:
Campbell K. McLauchlan;B. B'eri
中科院分区:
文献类型:
--
作者:
Campbell K. McLauchlan;B. B'eri
Majorana zero modes (MZMs) promise a platform for topologically protected fermionic quantum computation. However, creating multiple MZMs and generating (directly or via measurements) the requisite transformations (e.g., braids) pose significant challenges. We introduce fermion-parity-based computation (FPBC): a measurement-based scheme, modeled on Pauli-based computation, that uses efficient classical processing to virtually increase the number of available MZMs and which, given magic state inputs, operates without transformations. FPBC requires all MZM parities to be measurable, but this conflicts with constraints in proposed MZM hardware. We thus introduce a design in which all parities are directly measurable and which is hence well suited for FPBC. While developing FPBC, we identify the "logical braid group" as the fermionic analog of the Clifford group.