221 citations · 1.2k across the 21 of their papers we have counts for
3 papers · 2 filters
Strict hierarchy between parallel, sequential, and indefinite-causal-order strategies for channel discrimination
Jessica Bavaresco, Mio Murao, Marco Túlio Quintino
We present an instance of a task of minimum-error discrimination of two qubit-qubit quantum channels for which a sequential strategy outperforms any parallel strategy. We then esta…
Bell nonlocality with a single shot
Mateus Araújo, Flavien Hirsch, Marco Túlio Quintino
In order to reject the local hidden variables hypothesis, the usefulness of a Bell inequality can be quantified by how small a p-value it will give for a physical experiment. Here…
Consequences of preserving reversibility in quantum superchannels
Wataru Yokojima, Marco Túlio Quintino, Akihito Soeda +1
Similarly to quantum states, quantum operations can also be transformed by means of quantum superchannels, also known as process matrices. Quantum superchannels with multiple slots…