Covert Communication with Positive Rate Over State-Dependent Quantum Channels

We show that it is possible to achieve a positive covert communication rate over state-dependent quantum channels. Specifically, we consider fully quantum state-dependent channels when the transmitter shares an entangled state with the channel. To the best of our knowledge, this is the first instance of achieving a positive covert rate over a quantum channel. Our main results include a one-shot achievable covert rate and asymptotic achievable covert rates that recover, as a special case, known results for classical channels.