arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.00620quant-ph
收藏

费米子系统的量子操作和基于Majorana费米子门的过程层析成像

Quantum operation of fermionic systems and process tomography using Majorana fermion gates

Gang Zhang, Mingxia Huo, Ying Li

摘要:

量子层析成像是表征量子操作的重要工具。在本文中,我们提出了一个量子层析成像的框架,在费米系统。与量子比特系统相比,费米子遵守超选择规则,它对费米子系统中的状态、过程和测量设置了约束。因此,我们只能部分地重建一个作用于费米子模式子集的操作,而完整的重建总是需要至少一个辅助费米子模式。我们还报道了一个基于门的Majorana费米子量子计算机的完全重建协议,包括一组实现信息完全态制备和测量的电路。

英文摘要:

Quantum tomography is an important tool for the characterisation of quantum operations. In this paper, we present a framework of quantum tomography in fermionic systems. Compared with qubit systems, fermions obey the superselection rule, which sets constraints on states, processes and measurements in a fermionic system. As a result, we can only partly reconstruct an operation that acts on a subset of fermion modes, and the full reconstruction always requires at least one ancillary fermion mode in addition to the subset. We also report a protocol for the full reconstruction based on gates in Majorana fermion quantum computer, including a set of circuits for realising the informationally-complete state preparation and measurement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑