Slight update to research plan based on research paper
by Debashis Saha and Prasanta K. Panigrahi:
Since N+1 qubits must be acted on in order to encode 2N + 1 classical bits, the pure GHZ 5 state is useless for superdense coding, and is being abandoned for the secure communication demo in favor of the composite GHZ-Bell state outlined in the research above.
Updated content
Relevant details for this source