H-Bar vs h


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Katie 1E
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Joined: Fri Sep 29, 2017 7:04 am
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H-Bar vs h

Postby Katie 1E » Mon Oct 30, 2017 10:13 pm

Can h-bar and h be used interchangeably when using the heisenberg equation and expect to get the same answer either way? The textbook and solution manual both use h-bar, but in class we always use planck's constant divided by 4pi.

Ethan-Van To Dis2L
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

Re: H-Bar vs h

Postby Ethan-Van To Dis2L » Mon Oct 30, 2017 10:23 pm

h bar is simply h/2pi. So in the book it says you can use (1/2) X h bar which simplifies to h/4pi therefore we cannot use h bar and planck's constant interchangeably

sandros
Posts: 19
Joined: Fri Sep 29, 2017 7:07 am

Re: H-Bar vs h

Postby sandros » Mon Oct 30, 2017 10:26 pm

H-bar is just h divided by 2pi.
Since h= 6.626 x 10^-34
h-bar would be equal to (6.626 x 10^-34) / 2pi = 1.054 x 10^-34


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