ground-state
ground-state — noun
1. the condition where an atom, nucleus, or similar system is at its minimum possib
the condition where an atom, nucleus, or similar system is at its minimum possible energy
After losing energy, the electron dropped back to the ground state.
return to the ground state after energy loss
The laser works only when many atoms leave the ground state.
leave the ground state in laser physics
At very low temperatures, helium stays close to its ground state.
The graph shows how quickly the molecule returns to the ground state.
Nadia compared the excited state with the ground state in class.
- lowest-energy state
a descriptive paraphrase used in explanations rather than the standard term
- unexcited state
used when the contrast with an excited state is the main point
- excited state
a higher-energy condition reached after energy is absorbed
文法句型
be in the ground state
return to the ground state
leave the ground state
用法筆記
Usually follows in, leave, or return to. Most often appears in physics and chemistry when a stable low-energy condition is contrasted with an excited state.