3 papers
quant-ph2026
Composing Quantum Instruments
Robert I. Booth, Dominik Leichtle, Alex Rice +1
We study the composition of classically-controlled quantum instruments--the natural quantum analogue of Markov kernels. Classically, Markov kernels compose by integrating one kerne…
quant-ph2026
Composable simultaneous purification: when all communication scenarios reduce to spatial correlations
Matilde Baroni, Dominik Leichtle, Ivan Šupić +2
Bell non-locality is a powerful framework to distinguish classical, quantum and post-quantum resources, which relies on non-communicating players. Under which restriction can we ha…
quant-ph2025
Bounding the asymptotic quantum value of all multipartite compiled non-local games
Matilde Baroni, Dominik Leichtle, Siniša Janković +1
Non-local games are a powerful tool to distinguish between correlations possible in classical and quantum worlds. Kalai et al. (STOC'23) proposed a compiler that converts multipart…