I have a long equation
\begin{equation}
\Theta_{K} (\Delta t, \omega_{L}) = \frac{A}{2} \left[\frac{exp(-\Delta t/T_{2}^{*})\left[exp(- i \omega_{L} \Delta t)\left(exp(t_{rep}/T_{2}^{*} - i \omega_{L} t_{rep} - 1)\right) + exp(i \omega_{L} \Delta t) \left(exp(t_{rep}/T_{2}^{*} + i \omega_{L} t_{rep} - 1)\right) \right]}{exp\left(2 t_{rep}/T_{2}^{*}\right) + 1 - 2Re \left(exp(t_{rep}/T_{2}^{*} + i \omega_{L} t_{rep} - 1)\right)}\right]
\end{equation}
which does not fit on single line. How can I split this over two lines?