Joint Communication and Eavesdropper Detection on the Lossy Bosonic Channel

We study the problem of joint communication and detection of wiretapping on an optical fiber from a quantum perspective. Our system model describes a communication link that is capable of transmitting data under normal operating conditions and raising a warning at the transmitter side in case of eavesdropping. It contributes to a unified modelling approach, based on which established quantum communication paradigms like quantum key distribution can be compared to other approaches offering similar functionality.
Comment: 6 pages, 3 figures, to be presented at 2024 IEEE Global Communications Conference