- #1
DeathbyGreen
- 84
- 16
Hello! So I'm really stuck in a personal quest to derive Kitaev's 1D p wave superconductivity model, and I'm stuck on the seemingly simplest part.
1. Homework Statement
In the Bogluibov transformation, we get two coefficients from the equations[itex] |v_{k}|^{2}+ |u_{k}|^{2}= 1 [/itex]
[itex] v_{k}=(\frac{E_{Bulk}-\epsilon_{k}}{\Delta_{k}})\mu_{k} [/itex]
Where [itex] E_{Bulk} = \sqrt{\epsilon_{k}^{2} + |\Delta_{k}|^{2}} [/itex]
I cannot derive the correct expression for [itex]u_{k} [/itex]
[itex] u_{k} = \frac{\Delta_{k}}{|\Delta_{k}|}\frac{\sqrt{E_{Bulk}+\epsilon_{k}}}{\sqrt{2E_{Bulk}}} [/itex]I know it's just simple algebra, but I've been working on it for hours without any progress and I can't find any sources online that show the derivation :O
1. Homework Statement
In the Bogluibov transformation, we get two coefficients from the equations[itex] |v_{k}|^{2}+ |u_{k}|^{2}= 1 [/itex]
[itex] v_{k}=(\frac{E_{Bulk}-\epsilon_{k}}{\Delta_{k}})\mu_{k} [/itex]
Where [itex] E_{Bulk} = \sqrt{\epsilon_{k}^{2} + |\Delta_{k}|^{2}} [/itex]
The Attempt at a Solution
I cannot derive the correct expression for [itex]u_{k} [/itex]
[itex] u_{k} = \frac{\Delta_{k}}{|\Delta_{k}|}\frac{\sqrt{E_{Bulk}+\epsilon_{k}}}{\sqrt{2E_{Bulk}}} [/itex]I know it's just simple algebra, but I've been working on it for hours without any progress and I can't find any sources online that show the derivation :O