  We consider the problem of communicating a general bivariate function of two
classical sources observed at the encoders of a classical-quantum multiple
access channel. Building on the techniques developed for the case of a
classical channel, we propose and analyze a coding scheme based on coset codes.
The proposed technique enables the decoder recover the desired function without
recovering the sources themselves. We derive a new set of sufficient conditions
that are weaker than the current known for identified examples. This work is
based on a new ensemble of coset codes that are proven to achieve the capacity
of a classical-quantum point-to-point channel.
