31 citations · 62 across the 14 of their papers we have counts for
15 papers
Sensitivity targets for dark photon searches in charged kaon decays
M. Fabbrichesi, E. Gabrielli, K. Müürsepp
We investigate the prospects for detecting invisible dark photons in charged kaon decays through the two-pion channel and the one-pion radiative decay $K^+\toπ^…
Entanglement of momenta at colliders
Marco Fabbrichesi, Roberto Floreanini, Luca Marzola
We investigate the entanglement in the momenta of particle pairs produced at colliders, discarding the information on their spin state. We show how to quantify this entanglement by…
Measuring CP violation using quantum state tomography
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
We investigate direct CP violation in neutral meson decays by reconstructing the associated density matrices and measuring their difference using the trace distance. Our results co…
Quantum pions
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
We show that two- and three-pion states produced in the decay of neutral kaons are contextual, entangled, and Bell nonlocal in isospin space. By reinterpreting the experimental val…
Local vs. nonlocal entanglement in top-quark pairs at the LHC
M. Fabbrichesi, R. Floreanini, L. Marzola
We show that the entanglement observed in top-antitop quark spin states at the LHC is local in the energy region close to the production threshold. In contrast, nonlocal entangleme…
Tests of quantum contextuality in particle physics
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
Quantum contextuality refers to the impossibility of assigning a predefined, intrinsic value to a physical property of a system independently of the context in which the property i…
Quantum Information meets High-Energy Physics: Input to the update of the European Strategy for Particle Physics
Yoav Afik, Federica Fabbri, Matthew Low +68
Some of the most astonishing and prominent properties of Quantum Mechanics, such as entanglement and Bell nonlocality, have only been studied extensively in dedicated low-energy la…
Quantum contextuality of spin-1 massive particles
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
Contextuality is a fundamental property of quantum mechanics. Contrary to entanglement, which can only exist in composite systems, contextuality is also present for single entities…
About testing Bell locality at colliders
M. Fabbrichesi, R. Floreanini, L. Marzola
High-energy colliders enable the testing of quantum mechanics at its most fundamental level, in the presence of strong and electroweak interactions, with systems that consist of qu…
The trace distance between density matrices, a nifty tool in new-physics searches
Marco Fabbrichesi, Matthew Low, Luca Marzola
Quantum information methods have been brought to bear on high-energy physics, including the study of entanglement and Bell nonlocality in collider experiments. Quantum information…
Bell inequality is violated in charmonium decays
M. Fabbrichesi, R. Floreanini, E. Gabrielli +1
The experimental data on the helicity amplitudes of charmonium decays allow us to measure entanglement in final state spin correlations and test possible violations of the Bell ine…
Quantum tomography with leptons at the FCC-ee
M. Fabbrichesi, L. Marzola
The Future Circular Collider (FCC) -- in its first incarnation as a lepton collider -- will produce, according to the proposed design, more than 100 billion pairs of leptons af…
Quantum entanglement and Bell inequality violation at colliders
Alan J. Barr, Marco Fabbrichesi, Roberto Floreanini +2
The study of entanglement in particle physics has been gathering pace in the past few years. It is a new field that is providing important results about the possibility of detectin…
Dipole momenta and compositeness of the lepton at Belle II
M. Fabbrichesi, L. Marzola
The large number of leptons available at the Belle II experiment makes it possible to study their properties and the extent of their compositeness. Our strategy relies on three…
Probing entanglement and testing Bell inequality violation with at Belle II
Karl Ehatäht, Marco Fabbrichesi, Luca Marzola +1
We present a feasibility study to probe quantum entanglement and Belle inequality violation in the process at a center-of-mass…