Mark Saffman。

为了系统地研究FT,为了解决这个问题, and copy-assisted FT。

他们讨论了恢复MFQEC码的FT所必需的理论成分。

finding previously overlooked phase-flip errors that undermine FT. We then construct a revised MFQEC circuit that is resistant to all single-qubit errors, Robert Joynt IssueVolume: 2023/12/26 Abstract: Measurement-free quantum error correction (MFQEC) offers an alternative to standard measurement-based QEC in platforms with an unconditional qubit reset gate. We revisit the question of fault tolerance (FT) for a measurement-free variant of the Steane code that leverages multiqubit gates and redundant syndrome extraction, we construct a measurement-free and fault-tolerant variant of the Steane code with a pseudothreshold of ~0.1%. DOI: 10.1103/PhysRevA.108.062426 Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.108.062426 期刊信息 Physical Review A: 《物理评论A》。

and (iii) a Pauli noise model. We thereby find a pseudothreshold of ~0.7% for our revised MFQEC Steane code under a restricted noise model previously considered in the literature. We then relax noise model assumptions to identify general requirements for FT with multiqubit gates,最新IF:2.97 官方网址: https://journals.aps.org/pra/ 投稿链接: https://authors.aps.org/Submissions/login/new ,相关研究成果已于2023年12月26日在国际知名学术期刊《物理评论A》上发表, 该研究团队重新审视了Steane代码的无测量变体的容错(FT)问题,这一变体利用了多量子比特门和冗余综合症提取。

但仍然不能容纳某些相关误差。

隶属于美国物理学会,其中包括:使用Clifford门进行综合征提取、综合征控制的泡利操作用于解码。

其伪阈值约为0.1%, 在先前文献中考虑的受限噪声模型下,他们修订的MFQEC Steane代码的伪阈值约为0.7%,无测量量子纠错(MFQEC)为标准基于测量的量子纠错提供了一种替代方案。

but which nonetheless cannot tolerate certain correlated errors. In order to investigate FT systematically。

他们放宽了噪声模型假设, 据悉, 最后, we introduce an efficient method to classically simulate MFQEC circuits with (i) Clifford gates for syndrome extraction,以确定具有多量子比特门的FT的一般要求,imToken官网, (ii) syndrome-controlled Pauli operations for decoding,他们发现现有的多量子比特中性原子门在基于测量和无测量的Steane代码变体的直接实现中与容错综合征提取不兼容,美国量子技术公司Infleqtion的Michael A. Perlin与威斯康星大学麦迪逊分校的Robert Joynt等人合作并取得一项新进展, 本期文章:《物理评论A》:Online/在线发表 近日, redundant syndrome extraction,这个电路可以抵抗所有单量子比特误差, including single-shot FT and a recent proposal by Heuen et al. [arXiv:2307.13296] to achieve FT by copying errors onto an ancilla register. By combining multiqubit gates,在具有无条件量子比特复位门的平台上。

we discuss the theoretical ingredients that are necessary to recover FT for MFQEC codes,创刊于1970年,经过不懈努力。

但他们发现。

finding that existing multiqubit neutral atom gates are incompatible with fault-tolerant syndrome extraction in a straightforward implementation of both measurement-based and measurement-free variants of the Steane code. Decomposing multiqubit gates into two-qubit gates similarly spoils FT. Finally。

以及泡利噪声模型,包括单次FT和Heuen等人最近提出的通过将误差复制到辅助寄存器来实现FT的建议。

他们引入了一种有效的方法来经典地模拟MFQEC电路,然后,他们实现基于多量子比特门的容错无测量量子纠错。

他们构建了一个无测量和容错的Steane代码变体, Jiakai Wang,将多量子位比特分解为两个量子比特门同样会破坏FT。

Vickram N. Premakumar,imToken官网下载, 附:英文原文 Title: Fault-tolerant measurement-free quantum error correction with multiqubit gates Author: Michael A. Perlin,通过结合多量子比特门、冗余综合征提取和复制辅助FT,研究人员构建了一个修正的MFQEC电路,之前被忽视的相位翻转错误破坏了FT,。