V2EX cold atoms

Cold Atoms

定义 Definition

“冷原子”指被冷却到极低温度(通常在微开尔文甚至纳开尔文量级)的原子气体体系。在这种温度下,原子的热运动大幅减弱,量子效应(如物质波干涉、量子简并、玻色-爱因斯坦凝聚等)变得容易被观察与操控。该术语常见于激光冷却、磁光俘获、光学晶格与量子模拟等领域。

发音 Pronunciation (IPA)

/kold tmz/

例句 Examples

Researchers study cold atoms in a vacuum chamber.
研究人员在真空腔体中研究冷原子。

By trapping cold atoms in an optical lattice, the team simulated the behavior of a quantum material.
通过将冷原子困在光学晶格中,团队模拟了量子材料的行为。

词源 Etymology

“cold atoms”由形容词 cold(冷的)与名词 atoms(原子)组合而成。这里的“冷”并非日常意义的低温,而是物理学中的“超低温”概念,通常通过激光冷却蒸发冷却等技术实现,使原子速度分布变窄、热噪声降低,从而凸显量子行为。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Laser Cooling and Trapping(Harold J. Metcalf & Peter van der Straten)
  • BoseEinstein Condensation in Dilute Gases(C. J. Pethick & H. Smith)
  • Atom-Photon Interactions: Basic Processes and Applications(Claude Cohen-Tannoudji, Jacques Dupont-Roc, Gilbert Grynberg)
  • Quantum Computation and Quantum Information(Michael A. Nielsen & Isaac L. Chuang,涉及冷原子/离子等量子平台的讨论)
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