40 citations · 93 across the 7 of their papers we have counts for
7 papers
Naturally Private Recommendations with Determinantal Point Processes
Jack Fitzsimons, Agustín Freitas Pasqualini, Robert Pisarczyk +1
Often we consider machine learning models or statistical analysis methods which we endeavour to alter, by introducing a randomized mechanism, to make the model conform to a differe…
Secure communication over generalised quantum multiple access channels
Tamoghna Das, Karol Horodecki, Robert Pisarczyk
We investigate the security of generalized quantum multiple-access channels. We provide the formula for the achievable rate region of secure communication in the scenario of two se…
A note on blind contact tracing at scale with applications to the COVID-19 pandemic
Jack K. Fitzsimons, Atul Mantri, Robert Pisarczyk +2
The current COVID-19 pandemic highlights the utility of contact tracing, when combined with case isolation and social distancing, as an important tool for mitigating the spread of…
Genuine multipartite indistinguishability and its detection via generalized Hong-Ou-Mandel effect
Marcin Karczewski, Robert Pisarczyk, Paweł Kurzyński
The question whether two indistinguishable particles are bosons or fermions can be answered by observing the Hong-Ou-Mandel effect on a beam splitter. However, already for three pa…
Causal limit on quantum communication
Robert Pisarczyk, Zhikuan Zhao, Yingkai Ouyang +2
The capacity of a channel is known to be equivalent to the highest rate at which it can generate entanglement. Analogous to entanglement, the notion of a causality measure characte…
Geometry of quantum correlations in space-time
Zhikuan Zhao, Robert Pisarczyk, Jayne Thompson +3
The traditional formalism of non-relativistic quantum theory allows the state of a quantum system to extend across space, but only restricts it to a single instant in time, leading…