Skip to content

Commit

Permalink
Merge pull request #5 from ShuN6211/mod-readme
Browse files Browse the repository at this point in the history
use math block
  • Loading branch information
ShuN6211 authored Aug 7, 2023
2 parents a0dc5c7 + a902f85 commit 60428cb
Showing 1 changed file with 8 additions and 8 deletions.
16 changes: 8 additions & 8 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -7,22 +7,22 @@ You can get the eigenenergy, eigenfunction and pair potential at each temperatur
It is known that there are low-energy excitation levels inside the s-wave vortex core in the superconductor.
These states are got by solving following Bogoliubov-de Gennes equation(BdG eq) self-consistently.

$$
```math
\left[-\frac{1}{2k_{F}\xi_{0}}\nabla^{2}-\mu\right]\mathcal{U}_{q}(\boldsymbol{r})+\Delta(\boldsymbol{r})\mathcal{V}_{q}(\boldsymbol{r}) = E_{q}\mathcal{U}_{q}(\boldsymbol{r})
$$
```

$$
```math
\left[\frac{1}{2k_{F}\xi_{0}}\nabla^{2}+\mu\right]\mathcal{V}_{q}(\boldsymbol{r})+\Delta^{*}(\boldsymbol{r})\mathcal{U}_{q}(\boldsymbol{r}) = E_{q}\mathcal{V}_{q}(\boldsymbol{r})
$$
```

$$
```math
\Delta(\boldsymbol{r})=g\sum_{E_{q}\leq E_{\mathrm{c}}} \mathcal{U}_{q}(r)\mathcal{V}_{q}^{*}(r)[1-2f(E_{q})]
$$
```

Here, BdG eq is rewritten in dimensionless form using Pippard length $\xi_{0} = \hbar v_{F}/\Delta_{0}$ and zero-temperature bulk gap $\Delta_{0}$.
$f(E_{q})$ is Fermi distribution function. Solutions in an isolated vortex, especially CdGM mode is given by following form.

$$
```math
\begin{bmatrix}
\mathcal{U}_{n}(r, \theta) \\
\mathcal{V}_{n}(r, \theta)
Expand All @@ -32,7 +32,7 @@ $$
u_{n}(r)e^{in\theta} \\
v_{n}(r)e^{i(n + 1)\theta}
\end{bmatrix}
$$
```


Here, $n$ corresponds to angular momentum quantum number, i.e. CdGM mode is characterized by this number. In this library, the range of $n$ is integers of in $[-100, 99]$. Note that the part of $u_{n}(r), v_{n}(r)$ in the right side of above formula is one of the target of this library, not the left side of it.
Expand Down

0 comments on commit 60428cb

Please sign in to comment.