V2EX nisq

NISQ

释义 Definition

NISQ(Noisy Intermediate-Scale Quantum)指“有噪声的中等规模量子”阶段:量子计算机已经拥有几十到数百个量子比特(qubits),但噪声和错误率较高,尚不足以实现大规模、容错的通用量子计算;因此常用于研究近似算法、变分方法与特定任务的量子优势探索。该词也可泛指这一时期的硬件与算法生态。

发音 Pronunciation (IPA)

/nsk/

例句 Examples

NISQ devices are still noisy.
NISQ 设备仍然存在较多噪声。

In the NISQ era, researchers often use variational algorithms to get useful results despite limited qubit counts and imperfect gates.
在 NISQ 时代,研究者常用变分算法在量子比特数量有限、量子门不完美的情况下仍获得有价值的结果。

词源 Etymology

NISQ是一个首字母缩略词,来自 Noisy Intermediate-Scale Quantum。该术语由物理学家 John Preskill 在 2018 年提出并推广,用来概括当时(以及相当长一段时间内)量子硬件“规模上来了但噪声仍大、离容错还远”的过渡阶段。

相关词 Related Words

文学与著作中的用例 Notable Works

  • John Preskill, “Quantum Computing in the NISQ era and beyond”(2018)
  • Eleanor Rieffel & Wolfgang Polak, **Quantum Computing: A Gentle Introduction**(书中讨论 NISQ 背景下的量子计算现状)
  • Maria Schuld & Francesco Petruccione, **Supervised Learning with Quantum Computers**(涉及 NISQ 条件下的量子机器学习方法与限制)
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