Alice is transmitting a private message to Bob across a bosonic wiretap channel with the help of a public feedback channel to which all parties, including the fullyquantum equipped Eve, have completely noiseless access. We find that by altering the model such that Eve’s copy of the initial round of feedback is corrupted by an iota of noise, one step towards physical relevance, the capacity can ...

We consider a Jackson network in which some of the nodes have an infinite supply of work: When all the customers queued at such a node have departed, the node will process a customer from this supply. Such nodes will be processing jobs all the time, so they will be fully utilized and experience traffic intensity of 1. We calculate flow rates for such networks, obtain conditions for stability, a...

Arc-annotated sequences are useful in representing the structural information of RNA and protein sequences. In particular, arc-annotated sequences are useful in describing the secondary and tertiary structures of RNA and protein sequences. Structure comparison for RNA and for protein sequences has become a central computational problem bearing many challenging computer science questions. The lo...