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## Example Problem: Calculate Chern numbers for the Haldane Model
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47_Internal_Energy
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51_Simple_Molecular_Dynamics
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64_GCMC
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77_Berendsen_thermostat
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79_Nose_Hoover_chain_thermostat
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80_Anderson_thermostat
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## Example: Calculate Chern numbers for the Haldane Model
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### Main Problem and Dependencies
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**1. Generate an array of Chern numbers for the Haldane model on a hexagonal lattice by sweeping the following parameters: the on-site energy to next-nearest-neighbor coupling constant ratio ($m/t_2$ from -6 to 6 with $N$ samples) and the phase ($\phi$ from -$\pi$ to $\pi$ with $N$ samples) values. Given the lattice spacing $a$, the nearest-neighbor coupling constant $t_1$, the next-nearest-neighbor coupling constant $t_2$, the grid size $\delta$ for discretizing the Brillouin zone in the $k_x$ and $k_y$ directions (assuming the grid sizes are the same in both directions), and the number of sweeping grid points $N$ for $m/t_2$ and $\phi$.**
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