Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Portesi, M."'
We obtain the maximal average fidelity corresponding to the standard quantum teleportation protocol for an arbitrary isotropic distribution of input states and an arbitrary resource state. We extend this result to a family of von Neumann measurements
Externí odkaz:
http://arxiv.org/abs/2109.14479
In this work we consider the Fisher metric which results from the Hessian of the relative entropy group, that we called Fisher metric group, and we obtain the corresponding ones to the Boltzmann-Gibbs, Tsallis, Kaniadakis and Abe-Borges-Roditi classe
Externí odkaz:
http://arxiv.org/abs/1805.11157
We study a version of the generalized (h, {\phi})-entropies, introduced by Salicr\'u et al, for a wide family of probabilistic models that includes quantum and classical statistical theories as particular cases. We extend previous works by exploring
Externí odkaz:
http://arxiv.org/abs/1802.08673
Publikováno v:
In Physica A: Statistical Mechanics and its Applications 15 April 2022 592
We introduce quantum correlations measures based on the minimal change in unified entropies induced by local rank-one projective measurements, divided by a factor that depends on the generalized purity of the system in the case of non-additive entrop
Externí odkaz:
http://arxiv.org/abs/1604.00329
Publikováno v:
Quantum Inf Process 15, 3393 (2016)
We present a quantum version of the generalized $(h,\phi)$-entropies, introduced by Salicr\'u \textit{et al.} for the study of classical probability distributions. We establish their basic properties, and show that already known quantum entropies suc
Externí odkaz:
http://arxiv.org/abs/1506.02090
We provide a twofold extension of Landau--Pollak uncertainty relations for mixed quantum states and for positive operator-valued measures, by recourse to geometric considerations. The generalization is based on metrics between pure states, having the
Externí odkaz:
http://arxiv.org/abs/1406.3537
We revisit entropic formulations of the uncertainty principle for an arbitrary pair of positive operator-valued measures (POVM) $A$ and $B$, acting on finite dimensional Hilbert space. Salicr\'u generalized $(h,\phi)$-entropies, including R\'enyi and
Externí odkaz:
http://arxiv.org/abs/1311.5602
A geometric approach to formulate the uncertainty principle between quantum observables acting on an $N$-dimensional Hilbert space is proposed. We consider the fidelity between a density operator associated with a quantum system and a projector assoc
Externí odkaz:
http://arxiv.org/abs/1308.4029
We revisit, in the framework of Mach-Zehnder interferometry, the connection between the complementarity and uncertainty principles of quantum mechanics. Specifically, we show that, for a pair of suitably chosen observables, the trade-off relation bet
Externí odkaz:
http://arxiv.org/abs/1206.2992