For propagation in a periodic dielectric crystal i can by combining Maxwells equations under certain conditions get:
\bold{\nabla}\times{1\over\epsilon(\bold{x})}\bold{\nabla}\times\bold{H}=\left({\omega\over{c}}\right)^2\bold{H}
I can apply Bloch-Floquet theorem and then draw a lot of...
Hi,
I would like good information about photonic crystals.
Does anyone know where to find this? I would like the text to begin at the basic concepts. The only Solid stat physics book i have is "Introduction to solid state physics" 7th Edition by Kittel and it doesn´t say much about this...
I have a chemical reaction at equilibrium " cis <--> trans " at 300K
The energydifference between the two states is 4,7 kJ/mol and cis has the highest energy. I want to find out how many molecules that is in cis- and how many that is in trans-state?
Thankful for tips!
Regards
Daniel
I calculated the integrations again and only one of them was equal to zero.
That looks a lot better since it would be strange if the eigenfunction didn´t change when adding the disturbance!
Thanks!
/Daniel
On the other hand... how should i do if i needed to use all \{u_{0n}\} How would i get a_{nk} in that case? Please tell me if what i have got for u_1 above is correct because then i know if its me that can't integrate because i get that the integrals are zero or if i have set it all up wrong...
It is just an approximation and the only way I can think of an explanation to why the problem i´m supposed to solve says i only need to use these three is that they contribute most to the correction...
Daniel
I have a problem where I should calculate the ground state eigenfunction of a particle in the box where the potential V(x)=0 when 0<x<L and infinite everywhere else with the perturbation V'(x)=\epsilon when L/3<x<2L/3.
I get that the total ground state eigenfunction with the first order...
I need help figuring out the expression for the constant c_+
expressed in j and m in the following equation:
\hat J_+|Y_{jm}>=c_+|Y_{jm+1}>
Y is just spherical harmonics and \hat J_+=\hat J_x + i\hat J_y is a ladderoperator.
/Daniel
I think it is like this:
Since
\lim_{n \rightarrow \infty} a_{n} = A
we can say that
\lim_{n \rightarrow \infty} a_{n+1} = A_{2}
.
This gives
A_{2}=\sqrt{(2+A)}
and it´s obvious that
\lim_{n\rightarrow \infty} a_{n} = \lim_{n\rightarrow \infty} a_{n+1}
and then we get...
My latex knowledge ís not that good... but dextercioby wrote my problem down for me except that there is an equality sign in my problem! What i want to do is to prove equality. I can't just say that the operators are linear and write the answer down.
Please... some advice!
I need help proving this equation... Thankful for all answers!
\tilde{(\hat{A} +
\hat{B})^*} =
\tilde{\hat{A}}^* +
\tilde{\hat{B}}^*
I hope you can read my nice Latex equation! :)