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Quantum synchronizing words

delete2025-11-01
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PRE
AI
A
Andrzej Grudka
M
Marcin Karczewski
P
Paweł Kurzyński *
J
Jȩdrzej Stempin
J
Jan Wójcik
A
Antoni Wójcik
DOI:10.1088/1367-2630/ae16cadelete
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摘要

摘要

En 中文
在经典自动机理论中,同步字提供了一种机制,可通过精心选择的有限转移规则序列,将确定性自动机的任意状态重置为特定目标状态。在本工作中,我们将同步字的概念扩展到量子信息理论。具体而言,我们研究了两个非重置量子信道的级联是否能够产生一个重置信道。虽然我们针对一般的qudits形式化了该问题,但该设置的复杂性促使我们专注于qubit和qutrit的特定重置级联。此外,我们证明了在重置之后,任何纯实qutrit状态都可以使用相同的两个非重置信道紧密逼近。这些发现建立了一种同步字的量子类比,突显了它们在构建能够同时实现重置和准备任意状态的量子信道最小集合方面的潜在应用。
Keyword:
quantum channels
synchronizing words
quantum state preparation

期刊

New Journal of Physics 封面图
New Journal of Physics
IF:
2.8
论文数:
580
被引数:
3.5W

机构

A
adam mickiewicz university
学者数:
6.8K
论文数: 7.2K
被引数: 70
引用论文

引用论文

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Qutrit Randomized Benchmarking
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errA. Morvan; V. V. Ramasesh; M. S. Blok; J. M. Kreikebaum; K. O’Brien; L. Chen; B. K. Mitchell; R. K. Naik; D. I. Santiago; I. Siddiqi
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Initialization by Measurement of a Superconducting Quantum Bit Circuit
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