abstract
- © OSA 2019 © 2019 The Author(s)It has recently been shown that if two completely depolarizing channels are in a superposition of different orders, classical information can be transmitted that would be otherwise lost [1]. Here, we present a generalization of the results of [1] to study communication with arbitrary depolarizing channels and putting to good use indefinite causal order, a new paradigm for quantum information/computation.