Data and Code for: Defect binding-unbinding transition in active nematic membranes

We investigate the dynamics of active nematic liquid crystals on deformable membranes, focusing on the interplay between active stress and anisotropic curvature coupling. Using a minimal model, we simulate the coupled evolution of the nematic order parameter and membrane height. # Paper Data and Code Correspondence ## 1. Simulation Code * **Header files:** `AlcMembraneSimulator.h`, `SimConstants.h` * **Source files:** `AlcMembraneSimulator.cpp`, `main.cpp`, `FFT2.c` ## 2. Graph Generation Codes and Data The raw data files required for generating the figures are produced by running the simulation code. By default, the simulation code outputs all data files directly into the root `data/` directory. **Important Note on Data Placement:** To avoid file name conflicts and to correctly run the Python plotting scripts, you must manually move the generated data files from the root `data/` directory into the appropriate subdirectories (`data/fig1/`, `data/fig2/`, etc.) depending on the figure you wish to generate. Please refer to the correspondence table below for the correct data paths. The asterisks (`*`) in the data filenames represent the following parameter values in order from left to right: `[Coupling Constant]_[Bending Rigidity]_[Activity]_[Sample Number (0-9)]` ### Figure, Data, and Code Correspondence Table | Figure | Data Directory & File | Python Script (.py) | | :--- | :--- | :--- | | **Fig. 1 (a)-(f)** | `data/fig1/alcmem_sim_****.txt` | `fig1_spatial_patterns.py` | | **Fig. 2 (a), (c)** | `data/fig2/alcmem_Cor_****.txt` | `correlation_functions.py` | | **Fig. 2 (b), (d)** | `data/fig2/alcmem_CorLen_****.txt` | `analyze_parameter_sweep2.py` | | **Fig. 2 Inset** | `data/fig2/alcmem_CorLen_****.txt` | `fig2c_ratio.py` | | **Fig. 3 (a), (b)** | `data/fig3/alcmem_profile_****.txt` | `fig3_activity_transition.py` | | **Fig. 4** | `data/fig4/alcmem_profile_****.txt` | `fig4_phase_diagram.py` | | **Fig. 5** | `data/fig5/alcmem_sim_****.txt` | `fig5_curvature_correlation.py` |