42 citations · 49 across the 2 of their papers we have counts for
16 papers
Deterministic transformations between unitary operations: Exponential advantage with adaptive quantum circuits and the power of indefinite causality
Marco Túlio Quintino, Daniel Ebler
This work analyses the performance of quantum circuits and general processes to transform uses of an arbitrary unitary operation into another unitary operation . When…
Unitary channel discrimination beyond group structures: Advantages of sequential and indefinite-causal-order strategies
Jessica Bavaresco, Mio Murao, Marco Túlio Quintino
For minimum-error channel discrimination tasks that involve only unitary channels, we show that sequential strategies may outperform the parallel ones. Additionally, we show that g…
Simple and maximally robust processes with no classical common-cause or direct-cause explanation
Marcello Nery, Marco Túlio Quintino, Philippe Allard Guérin +2
Guided by the intuition of coherent superposition of causal relations, recent works presented quantum processes without classical common-cause and direct-cause explanation, that is…
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…