qspec.temperature_doppler  (  a  )[source]

The minimum temperature achievable through Doppler cooling in a closed two-level transition (Doppler limit) $$ T_\mathrm{Doppler} = \frac{\hbar \Gamma}{2k_\mathrm{B}}. $$

Parameters:

aarray_like

The inverse lifetime $\Gamma = 1 / \tau$ of the upper state of the cooling transition (MHz).

Returns:

T_dopplerndarray

The temperature $T_\mathrm{Doppler}$ (K).