When you start studying physics you get introduced very quickly to h-bar
constant.
H-bar is called the reduced Planck constant (Planck constant divided by
2PI) or the Dirac constant.
H-bar is fantastic!
Why? Because it is always with us whenever we work with quantized light
or matter.
And who doesn't like that?
If you studied physics long enough you are slowly adjusting to not forget
a bar on your h. interestingly enough after few more years in a field it becomes
a challenge to not write h-bar in equations wherever h occurs.
I thought it is just me but not it is a curse and most of the students
fall in that trap.
There is nothing we can do about it...
We can live proudly with our curse...
There is actually one more stage it is called "natural units stage".
(In natural units h-bar=1)
Once you get there you will never write h-bar again.
I am not there yet but I am getting there...
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