  In this work we introduce a method for calculating holographic duals of BCFTs
with more than two boundaries. We apply it to calculating the dynamics of
entanglement entropy in a 1+1d CFT that is instantaneously split into multiple
segments and calculate the entanglement entropy as a function of time for the
case of two splits, showing that our approach reproduces earlier results for
the double split case. Our manuscript lays the groundwork for future
calculations of the entanglement entropy for more than two splits and systems
at nonzero temperature.
