Assertion: wave's momentum | /r/HasProperty | uncertain
Facets:
Source sentences:
text: This linear growth is a reflection of the (time-invariant) momentum uncertainty: the wave packet is confined to a narrow Δx=√a/2, and so has a momentum which is uncertain (according to the uncertainty principle) by the amount ħ/√2a, a spread in velocity of ħ/m√2a, and thus in the future position by ħt /m√2a.