V2EX ultracold

Ultracold

定义 Definition

ultracold(形容词):超低温的;极冷的,通常指温度远低于冰点,尤其常用于物理学语境中描述接近绝对零度的温度(如超冷原子、超冷气体)。

发音 Pronunciation

/ltrkold/

例句 Examples

The scientists created an ultracold gas in the lab.
科学家在实验室里制备出一种超低温气体。

Ultracold atoms behave in unusual ways, allowing researchers to study quantum effects that are hard to see at ordinary temperatures.
超冷原子会表现出一些不同寻常的行为,使研究人员能够观察在常温下难以显现的量子效应。

词源 Etymology

由前缀 **ultra-**(“极度、超出”)+ cold(“寒冷的”)构成,字面意思就是“极度寒冷”。该词在现代科学写作中很常见,尤其用于低温物理与量子实验领域。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Laser Cooling and Trapping(Harold J. Metcalf & Peter van der Straten)讨论“ultracold atoms(超冷原子)”与激光冷却技术。
  • BoseEinstein Condensation in Dilute Gases(C. J. Pethick & H. Smith)大量使用“ultracold gases(超冷气体)”等表达。
  • Ultracold Atoms in Optical Lattices: Simulating Quantum Many-Body Systems(Maciej Lewenstein 等,综述/专著方向)以“ultracold”作为核心概念讨论量子多体模拟。
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