## Heisenberg Constant

$\Delta p \Delta x\geq \frac{h}{4\pi }$

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

### Heisenberg Constant

Why is that when we learned about the Heisenberg uncertainty principle the principle was h/4*pi but in the textbook, they referred to the constant as h/2.

Sidharth D 1E
Posts: 98
Joined: Sat Aug 24, 2019 12:17 am

### Re: Heisenberg Constant

in the book, they abbreviate their "h" as being h/2(pi) already.

Yuri Lin 4H
Posts: 51
Joined: Sat Aug 17, 2019 12:15 am

### Re: Heisenberg Constant

I think my TA did a problem with this, and the 'h' has a bar through it and is pronounced "h bar"

H bar stands for h/2pi

AryaG_4C
Posts: 50
Joined: Mon Sep 30, 2019 12:16 am

### Re: Heisenberg Constant

It is so because in the book it is h Bar which is essentially (h/2). Thus, it ends up being h/4*pi when h bar is divided by 2.