Where Does Equation (3) in Kittel's Chapter 5 Come From?

  • Thread starter Thread starter ehrenfest
  • Start date Start date
ehrenfest
Messages
2,001
Reaction score
1
[SOLVED] kittel chapter 5

Homework Statement


This question refers to Kittel's solid-state physics book.

Where does equation (3) come from?

EDIT: never mind

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
ehrenfest,you should sincerely show your problem and whatever you have thought in this homework help section.We all do it.May be that it is not a homework problem...but understanding the concept yourself is also a way of learning physics.So,better you think over the problem and inform us regarding the details...where the dispute is.

Since, I am not a moderator,possibly I am not the correct man to say this to you.In fact, I too reply to posts very rarely...So take it as a suggestion,not order.
 
Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
The value of H equals ## 10^{3}## in natural units, According to : https://en.wikipedia.org/wiki/Natural_units, ## t \sim 10^{-21} sec = 10^{21} Hz ##, and since ## \text{GeV} \sim 10^{24} \text{Hz } ##, ## GeV \sim 10^{24} \times 10^{-21} = 10^3 ## in natural units. So is this conversion correct? Also in the above formula, can I convert H to that natural units , since it’s a constant, while keeping k in Hz ?
Back
Top