### Heisenberg Indeterminacy Equation

Posted:

**Sat Nov 02, 2019 12:08 pm**Where does the 4 pi come from in the equation?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=19&t=49744

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Posted: **Sat Nov 02, 2019 12:08 pm**

Where does the 4 pi come from in the equation?

Posted: **Sat Nov 02, 2019 12:13 pm**

Delta x and delta p were multiplied to find the value. So if one uncertainty is reduced the other increases and vice versa. I think they used advanced mathematics and showed that the best was done with for the measurement of position and moment was with the inclusion of 4 pi

Posted: **Sat Nov 02, 2019 12:15 pm**

4 pi is a constant that was produced from an experiment. It stems from the idea that most graphs of waves involve the sine curve, which is usually graphed using pi.

Posted: **Mon Nov 04, 2019 10:46 am**

Can someone run through what each part of the equation is? I am super super lost on this concept

Posted: **Tue Nov 05, 2019 11:00 pm**

The delta x is the uncertainty in position and the delta p is uncertainty in momentum. The product of these two are greater than or equal to Planck's constant divided by 4*pi.

If we know the position, then the momentum is uncertain, and vice versa.

If we know the position, then the momentum is uncertain, and vice versa.

Posted: **Tue Nov 05, 2019 11:35 pm**

What exactly do we use the Heisenberg's equation for and what does it tell us? Thanks

Posted: **Fri Nov 15, 2019 9:16 am**

The Heisenberg uncertainty principle states that it is impossible to know simultaneously the exact position and momentum of a particle. So the more defined the position is determined, the momentum is less known, and vice versa.