Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Tosini, Alessandro"'
We introduce a class of probabilistic theories where the dynamics of each system is limited to the minimal set of operations consistent with the set of states and allowing for conditional tests. We show that almost all minimal theories with condition
Externí odkaz:
http://arxiv.org/abs/2408.01368
Publikováno v:
Quantum Information and Computation 24, 441 (2024)
The signaling dimension of a given physical system quantifies the minimum dimension of a classical system required to reproduce all input/output correlations of the given system. Thus, unlike other dimension measures - such as the dimension of the li
Externí odkaz:
http://arxiv.org/abs/2311.13103
A causal relation between quantum agents, say Alice and Bob, is necessarily mediated by an interaction. Modelling the last one as a reversible quantum channel, an intervention of Alice can have causal influence on Bob's system, modifying correlations
Externí odkaz:
http://arxiv.org/abs/2309.07771
Publikováno v:
Phys. Rev. A 109, 022239 (2024)
The core of Heisenberg's heuristic argument for the uncertainty principle, involving the famous $\gamma$-ray microscope $\textit{Gedankenexperiment}$, hinges upon the existence of measurements that irreversibly alter the state of the system on which
Externí odkaz:
http://arxiv.org/abs/2305.16931
Publikováno v:
Quantum 8, 1384 (2024)
We address the problem of quantifying the information content of a source for an arbitrary information theory, where the information content is defined in terms of the asymptotic achievable compression rate. The functions that solve this problem in c
Externí odkaz:
http://arxiv.org/abs/2302.01651
Autor:
Buscemi, Francesco, Kobayashi, Kodai, Minagawa, Shintaro, Perinotti, Paolo, Tosini, Alessandro
Publikováno v:
Quantum 7, 1035 (2023)
While there is general consensus on the definition of incompatible POVMs, moving up to the level of instruments one finds a much less clear situation, with mathematically different and logically independent definitions of incompatibility. Here we clo
Externí odkaz:
http://arxiv.org/abs/2211.09226
Publikováno v:
J. Phys. A Math. Theor. 55 394006 (2022)
Every theory of information, including classical and quantum, can be studied in the framework of operational probabilistic theories--where the notion of test generalizes that of quantum instrument, namely a collection of quantum operations summing to
Externí odkaz:
http://arxiv.org/abs/2204.07956
Publikováno v:
Phys. Rev. A 105, 052222 (2022)
The information content of a source is defined in terms of the minimum number of bits needed to store the output of the source in a perfectly recoverable way. A similar definition can be given in the case of quantum sources, with qubits replacing bit
Externí odkaz:
http://arxiv.org/abs/2112.12689
We address the task of compression of fermionic quantum information. Due to the parity superselection rule, differently from the case of encoding of quantum information in qubit states, part of the information carried by fermionic systems is encoded
Externí odkaz:
http://arxiv.org/abs/2106.04964
Publikováno v:
Phys. Rev. A 103, 012416 (2021)
The paper studies unambiguous discrimination of Fermionic states through local operations and classical communication (LOCC). In the task of unambiguous discrimination, no error is tolerated but an inconclusive result is allowed. We show that contrar
Externí odkaz:
http://arxiv.org/abs/2009.05657