Classical-Quantum Multiple Access Wiretap Channel

In this paper, the quantum wiretap channel (QWTC) and quantum multiple access channel (QMAC) are used so as to introduce the classical-quantum multiple access wiretap channel (C-QMA-WTC). In this regard, the classical concepts about the multiple access wiretap channel (MA-WTC) are defined. Moreover, the multiple access wiretap channel with classical inputs and quantum output is considered. An achievable secrecy rate region of C-QMA-WTC is derived. After presenting the results of quantum wiretap channel, we illustrate how mutual information can be used instead of the Holevo information in the expression of the secrecy capacity region.