V2EX ground state

Ground State

释义 Definition

(物理/化学)基态:一个原子、分子或量子系统在给定条件下所能处于的最低能量状态。与之相对的是激发态(excited state)。在热平衡下,系统通常更倾向于处在基态或接近基态的状态。

发音 Pronunciation (IPA)

/rand stet/

例句 Examples

The electron is in its ground state.
电子处于基态。

After cooling the atoms with lasers, most of them settle into the ground state, which makes precise measurements possible.
用激光冷却原子后,它们大多会回到基态,从而使精密测量成为可能。

词源 Etymology

ground(“基础的、最低的”之意)+ state(“状态”)组成。该短语在1920世纪的物理与化学语境中逐渐固定为术语,用来指系统能量最低的“基底状态”,尤其常见于量子力学与光谱学讨论中。

相关词 Related Words

文学与经典作品 Literary Works

  • The Feynman Lectures on Physics(费曼《物理学讲义》)
  • Introduction to Quantum Mechanics(Griffiths,《量子力学导论》)
  • Principles of Quantum Mechanics(Dirac,《量子力学原理》)
  • Quantum Mechanics: Non-Relativistic Theory(Landau & Lifshitz,《量子力学:非相对论理论》)
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