11 papers
Fermions are fundamentally more nonlocal than Bosons
Fatemeh Moradi Kalarde, Sadra Boreiri, Xiangling Xu +5
Bell's theorem shows that entangled quantum particles can exhibit correlations that classical particles cannot reproduce without an additional nonlocal resource, such as communicat…
The composition rule for quantum systems is not the only possible one
Marco Erba, Paolo Perinotti
Quantum theory provides a significant example of two intermingling hallmarks of science: the ability to consistently combine physical systems and study them compositely, and the po…
Higher-order transformations of bidirectional quantum processes
Luca Apadula, Alessandro Bisio, Giulio Chiribella +2
Bidirectional devices are devices for which the roles of the input and output ports can be exchanged. Mathematically, these devices are described by bistochastic quantum channels,…
Renormalisation of Fermionic Cellular Automata
Lorenzo Siro Trezzini, Andrea Pizzamiglio, Alessandro Bisio +1
We present an exact renormalisation scheme for fermionic cellular automata on hypercubic lattices. By grouping neighbouring cells into tiles and selecting subspaces within them, mu…
Quantum complementarity
Davide Rolino, Paolo Perinotti, Alessandro Tosini
We propose an operational definition of complementarity, pinning down the concept originally introduced by Bohr. Two properties of a system are considered complementary if they can…
Classification of qubit cellular automata on hypercubic lattices
Andrea Pizzamiglio, Alessandro Bisio, Paolo Perinotti
We classify quantum cellular automata whose cells are qubits, on hypercubic lattices , with the von Neumann neighborhood scheme, in terms of realizability as finite-de…