V2EX charge qubit

Charge Qubit

定义 Definition

电荷量子比特:一种以电荷态(例如在超导电路中小岛上“多/少一个库珀对”的占据数)作为主要信息载体的量子比特实现方式,常见于超导量子计算固态量子器件研究中。(该术语也常与 flux qubitphase qubit 等并列使用。)

发音 Pronunciation (IPA)

/trd kjubt/

例句 Examples

A charge qubit stores information in different charge states.
电荷量子比特通过不同的电荷态来存储信息。

By tuning the gate voltage, the experimenters controlled the charge qubit and observed coherent oscillations despite environmental noise.
研究人员通过调节栅极电压来控制电荷量子比特,并在环境噪声存在的情况下仍观测到了相干振荡。

词源 Etymology

charge 源自中古法语 charger(“装载、加重;施加”),进一步可追溯到拉丁语 carricāre(“装车、装载”);在物理语境中逐渐固定为“电荷”。
qubitquantum bit(量子比特)的混成缩略词,20世纪由量子信息领域推广用(常与 Benjamin Schumacher 的早期使用相关)。
组合成 charge qubit,字面即“以电荷为主要自由度的量子比特”。

相关词 Related Words

文献与作品 Literary Works

  • Superconducting qubits: current state of play(Makhlin, Schn, Shnirman,综述中讨论了包括电荷量子比特在内的多种超导量子比特)
  • Circuit QED: superconducting qubits coupled to microwave photons(Blais 等,涉及与电荷型器件相关的电路量子电动力学框架)
  • Superconducting Circuits for Quantum Information: An Outlook(Devoret & Schoelkopf,概述超导量子信息器件,电荷量子比特为重要早期路线之一)
  • Quantum Computation and Quantum Information(Nielsen & Chuang,虽更偏通用量子信息,但在讨论物理实现时常被引用并关联到电荷型实现路线)
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