N_A = 6.02214076e23  # Avogadro's number
C_LIGHT_M_S = 299792458  # Speed of light in m/s

# Boltzmann constant in J/K
K_BOLTZMANN = 1.380649e-23

# Planck constant in J*s
H_PLANCK = 6.62607015e-34

# 0.1 / (H_PLANCK * C_LIGHT_M_S)
H_C_COM = 0.1 / (H_PLANCK * C_LIGHT_M_S)
