home/UsefulConstants.md

+## Units of $\hbar = 1$, $k_B = 1$, $\epsilon_0 = 1/(4\pi)$
+In units where the reduced Planck constant $\hbar = 1$, the Boltzmann constant in $k_B = 1$ and the vacuum permittivity $\epsilon_0 = 1/(4\pi)$
+- The electron charge squared is $e^2 = 14.399$ $Å\text{eV}$
+- The elementary electron mass is $m_e = 0.1314$ $Å^{-2} \text{eV}^{-1}$
+- The temperature (in Kelvin) is given by $T[K] = T[\text{eV}] / k_B[\text{eV}]$, where $k_B[\text{eV}] = 8.617333262 \times 10^{-5}$ eV/K
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