Zobrazeno 1 - 10
of 880
pro vyhledávání: '"Bordone, P."'
Holes in Si quantum dots are being investigated for the implementation of electrically addressable spin qubits. In this perspective, the attention has been focused on the electric-field induced transitions between the eigenstates belonging to the gro
Externí odkaz:
http://arxiv.org/abs/2411.05526
The recent observation of the $K^+ \to \pi^+ \nu\bar\nu$ decay by NA62 is an important milestone in precision flavor physics. Together with evidence of $B^+ \to K^+\nu\bar\nu$ reported by Belle-II, they are the only FCNC decays involving third-family
Externí odkaz:
http://arxiv.org/abs/2410.21444
Routing classical and quantum information is a fundamental task for most quantum information technologies and processes. Here, we consider information encoded in the position of a quantum walker on a graph, and design an optimal structure to achieve
Externí odkaz:
http://arxiv.org/abs/2406.11834
Autor:
Bordone, Marzia, Juttner, Andreas
We present an analysis of the exclusive semileptonic decay $B\to D^\ast \ell\bar\nu_\ell$ based on the Belle and Belle II data made public in 2023, combined with recent lattice-QCD calculations of the hadronic transition form factors by FNAL/MILC, HP
Externí odkaz:
http://arxiv.org/abs/2406.10074
We examine metrological scenarios where the parameter of interest is encoded onto a quantum state through the action of a noisy quantum gate and investigate the ultimate bound to precision by analyzing the behaviour of the Quantum Fisher Information
Externí odkaz:
http://arxiv.org/abs/2406.01590
We address quantum metrology in critical spin chains with anisotropy and Dzyaloshinskii-Moriya (DM) interaction, and show how local and quasi-local measurements may be exploited to characterize global properties of the systems. In particular, we eval
Externí odkaz:
http://arxiv.org/abs/2405.20296
Discrete-time quantum walk (DTQW) represents a convenient mathematical framework for describing the motion of a particle on a discrete set of positions when this motion is conditioned by the values of certain internal degrees of freedom, which are us
Externí odkaz:
http://arxiv.org/abs/2405.17354
We analyze data on $B\to K\mu^+\mu^-$ and $B\to K^*\mu^+\mu^-$ decays in the whole dilepton invariant mass spectrum with the aim of disentangling short- vs. long-distance contributions. The sizable long-distance amplitudes from $c \bar{c}$ narrow res
Externí odkaz:
http://arxiv.org/abs/2401.18007
Autor:
Aira, Luca Savant, Valsesia, Diego, Molini, Andrea Bordone, Fracastoro, Giulia, Magli, Enrico, Mirabile, Andrea
Multi-image super-resolution (MISR) allows to increase the spatial resolution of a low-resolution (LR) acquisition by combining multiple images carrying complementary information in the form of sub-pixel offsets in the scene sampling, and can be sign
Externí odkaz:
http://arxiv.org/abs/2401.16972
We address quantum characterization of anisotropic spin chains in the presence of antisymmetric exchange, and investigate whether the Hamiltonian parameters of the chain may be estimated with precision approaching the ultimate limit imposed by quantu
Externí odkaz:
http://arxiv.org/abs/2401.14479