Constants & Units · constant
Compton wavelength
λ_C = 2.426 310 235 38(76) × 10⁻¹² m
- Unit
- m
- Value
- 2.426 310 235 38(76) × 10⁻¹²
- Exact
- no
- Note
- Confine an electron tighter than this and pair production begins — the edge of single-particle quantum mechanics.
- Symbol
- λ_C
- Category
- Atomic & nuclear
- Numeric
- 2.42631023538e-12
- Uncertainty
- ±3.1 × 10⁻¹⁰ relative
Open on the Constants & Units shelf — the interactive card, the filters, and everything alongside it.