Heisenberg indeterminacy equation


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Jared Khoo 1G
Posts: 107
Joined: Wed Sep 18, 2019 12:16 am

Heisenberg indeterminacy equation

Postby Jared Khoo 1G » Mon Oct 14, 2019 8:10 pm

In class, we learned it as Delta P* Delta X >= h/4pi, but in the solutions manual it states that it is greater than or equal to (1/2)h. Can someone please clarify which one is the correct formula? Thanks.

Heba Mengesha 3D
Posts: 50
Joined: Sat Sep 07, 2019 12:19 am

Re: Heisenberg indeterminacy equation

Postby Heba Mengesha 3D » Mon Oct 14, 2019 8:30 pm

ΔpΔx≥h/4π is equal to ΔpΔx≥h/2

christabellej 1F
Posts: 109
Joined: Sat Aug 17, 2019 12:17 am

Re: Heisenberg indeterminacy equation

Postby christabellej 1F » Mon Oct 14, 2019 8:57 pm

These two expressions are actually the same. This is because the h/2 is not h, but h bar. H bar is equal to h/2pi. Thus, this would make it the same as h/4pi because 1/2hbar = 1/2(h/2pi) = h/4pi. Hope this helps a bit


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