## h with a line through it?

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

marcus lin 1E
Posts: 54
Joined: Fri Sep 28, 2018 12:28 am

### h with a line through it?

So Dr. Lavelle was talking about how h/4pi is the same as h with that line through it/2pi, can someone explain the difference?

Yiting_Gong_4L
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

### Re: h with a line through it?

H-bar is equal to h/2pi.

Aili Ye 4L
Posts: 58
Joined: Fri Sep 28, 2018 12:16 am

### Re: h with a line through it?

As the person stated above, h-bar is the same thing as h/2, there is no difference.

ryanhon2H
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

### Re: h with a line through it?

h bar is h/2π. The difference is in the Heisenberg equation where it could be (Δp x Δx) = h/4π or (Δp x Δx) = 1/2(h bar). 1/2(h bar) simplifies to h/4π

Luc Lorain 1L
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

### Re: h with a line through it?

It just represents another one of those symbols that physicists created to make their lives easier while writing calculations. Its a similar concept to the Hamiltonian, which represents a long expression related to wave-particle duality with the letter H.

ran2000
Posts: 66
Joined: Fri Sep 28, 2018 12:15 am

### Re: h with a line through it?

h bar is h/2pi

Sheridan Slaterbeck 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

### Re: h with a line through it?

H bar is just a short hand notation, that is used just to simplify what is written. ( Hbar= h/2 pi) (H bar/2 = h/4 pi)

Jackie Ngo 1C
Posts: 30
Joined: Fri Sep 29, 2017 7:06 am

### Re: h with a line through it?

h bar is essentially another way to say h/2pi. it can also be called Planck's constant, in case you didn't already know (I just discovered this in my discussion section)

Jake Gordon 1A
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

### Re: h with a line through it?

h bar is equivalent to h/2pi so...hbar/2 is equivalent to h over 4pi which is what the right side of the Heisenberg equation requires.