Holonomic implementation of CNOT gate on topological Majorana qubits

Holonomic implementation of CNOT gate on topological Majorana qubits
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CNOT 门在拓扑马约拉纳量子位上的完整实现

DOI:
10.21468/scipostphyscore.3.2.014
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发表时间:
2020
期刊:
arXiv: Mesoscale and Nanoscale Physics
影响因子:
--
通讯作者:
B. Trauzettel
B. Trauzettel
中科院分区:
--
文献类型:
--
作者:
A. Calzona;Nicolas P. Bauer;B. Trauzettel

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CNOT门是通用量子计算中必不可少的双量子比特门。在基于马约拉纳的量子比特中实现它的一种行之有效的方法依赖于随后对马约拉纳(联合)奇偶的测量。我们提出了一种替代方案,该方案通过对少量系统参数的完整控制来操作受保护的CNOT门,而不需要任何测量。我们展示了马约拉纳之间对耦合的绝热调谐如何强有力地导致两个量子位的完全纠缠,而对参数控制的微小变化不敏感。
The CNOT gate is a two-qubit gate which is essential for universal quantum computation. A well-established approach to implement it within Majorana-based qubits relies on subsequent measurement of (joint) Majorana parities. We propose an alternative scheme which operates a protected CNOT gate via the holonomic control of a handful of system parameters, without requiring any measurement. We show how the adiabatic tuning of pair-wise couplings between Majoranas can robustly lead to the full entanglement of two qubits, insensitive with respect to small variations in the control of the parameters.
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