Nayak and Yuen's rigidity conjecture for superdense coding
Let (τ,(Wi))(\tau,(W_i))(τ,(Wi)) be a ddd-dimensional superdense coding protocol. Let HA′\mathcal{H}_{A'}HA′, HA”\mathcal{H}_{A”}HA”, HB′\mathcal{H}_{B'}HB′, and HB”\mathcal{H}_{B”}HB” be the Hilbert spaces in…