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st wslda examples · Changes

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Update st wslda examples authored Dec 29, 2020 by Gabriel Wlazłowski's avatar Gabriel Wlazłowski
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st-wslda-examples.md
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[[_TOC_]]
# Example 1: gas confined in a tube # Example 1: gas confined in a tube
The solution of cold atomic gas in an external potential of the form of a tube. Gas with is in BCS regime with $`ak_F=-0.9`$. In the calculation, we assumed translation symmetry along z direction and `st-wslda-2d` was used. In the computation, `double` arithmetic is utilized. The solution of cold atomic gas in an external potential of the form of a tube. Gas with is in BCS regime with $`ak_F=-0.9`$. In the calculation, we assumed translation symmetry along z direction and `st-wslda-2d` was used. In the computation, `double` arithmetic is utilized.
* [predefines.h](uploads/b0f9c475f5dbd44640310b713ecb5ea5/tube_predefines.h) * [predefines.h](uploads/b0f9c475f5dbd44640310b713ecb5ea5/tube_predefines.h)
...@@ -18,3 +20,19 @@ The solution representing a vortex confined in a tube. The conditions are the sa ...@@ -18,3 +20,19 @@ The solution representing a vortex confined in a tube. The conditions are the sa
The graph below shows density distribution (left) and the absolute value of delta (right) for the converged solution. By arrows currents are plotted. The graph below shows density distribution (left) and the absolute value of delta (right) for the converged solution. By arrows currents are plotted.
![example-st-2](uploads/f896b92eeaa489872600109615ef066b/example-st-2.png) ![example-st-2](uploads/f896b92eeaa489872600109615ef066b/example-st-2.png)
# Example 3: Mass imbalanced gas in a harmonic trap
This example is motivated by work [arXiv:1909.03424](https://arxiv.org/abs/1909.03424).
Namely, let us consider gas of:
* component *a*: $`{}^{161}\textrm{Dy}`$,
* component *b*: $`{}^{40}\textrm{K}`$,
confined in harmonic trap:
```math
V_{a,b}(x)=\dfrac{m_a \omega_a^2 x^2}{2}
```
where traping frequencies of both components are different (in the example we use according to [arXiv:1909.03424](https://arxiv.org/abs/1909.03424) $`\omega_a/\omega_b=120/430`$). In addition $`N_{\textrm{Dy}} / N_{\textrm{K}} = 20000/8000`$. In the calculations BdG functional is used, with the scattering length exceeding other length scales (in the example $`a=100`$). In the calculation `st-wslda-1d` was used.
* [predefines.h](uploads/8bed3548acc9dd04a2ccf54a35687ac7/DyK_predefines.h)
* [problem-definition.h](uploads/475df575833b5d4e92acd77b30992930/DyK_problem-definition.h)
* [logger.h](uploads/8ac2b1262a442fa45092727564919f94/DyK_logger.h)
* [input.txt](uploads/287f965385d1da19e7d84f007ec26a0e/DyK_input.txt)
\ No newline at end of file
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