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Physics as quantum information processing
Giacomo Mauro D'Ariano
The experience from Quantum Information has lead us to look at Quantum Theory (QT) and the whole Physics from a different angle. The information-theoretical paradigm---"It from Bit…
The Quantum Field as a Quantum Computer
Giacomo Mauro D'Ariano
It is supposed that at very small scales a quantum field is an infinite homogeneous quantum computer. On a quantum computer the information cannot propagate faster than , $a…
Physics as Information Processing
Giacomo Mauro D'Ariano
I review some recent advances in foundational research at Pavia QUIT group. The general idea is that there is only Quantum Theory without quantization rules, and the whole Physics-…
Informational derivation of Quantum Theory
G. Chiribella, G. M. D'Ariano, P. Perinotti
Quantum theory can be derived from purely informational principles. Five elementary axioms-causality, perfect distinguishability, ideal compression, local distinguishability, and p…
Purification of noisy quantum measurements
M. Dall'Arno, G. M. D'Ariano, M. F. Sacchi
We consider the problem of improving noisy quantum measurements by suitable preprocessing strategies making many noisy detectors equivalent to a single ideal detector. For observab…
Space-time and special relativity from causal networks
Giacomo Mauro D'Ariano, Alessandro Tosini
We show how the Minkowskian space-time emerges from a topologically homogeneous causal network, presenting a simple analytical derivation of the Lorentz transformations, with metri…