14 papers
Entanglement and non-separability of momenta and coordinates at colliders
Marco Fabbrichesi, Roberto Floreanini, Luca Marzola
We explore the possibility of testing in collider experiments whether phase-space variables are separable. We first study phase-space non-separability by means of EPR-like correlat…
Testing the CKM unitarity at high energy via the production at the LHC and future colliders
E. Gabrielli, L. Marzola, K. Müürsepp
We propose a novel test to assess the unitarity of the Cabibbo-Kobayashi-Maskawa matrix, , at present and future collider experiments. Our strategy makes use of the $W…
Testing the unitarity of the light neutrino mixing matrix
E. Gabrielli, A. Lind, L. Marzola +2
We propose a novel test of the unitarity of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix at collider experiments. Our approach exploits the incomplete cancellation betw…
Quantum Entanglement and Bell Nonlocality at Future Lepton Collider
Emidio Gabrielli, Luca Marzola
Quantum entanglement and Bell nonlocality--cornerstones of quantum mechanics--have traditionally been investigated only in low-energy experimental settings. Only recently, these fu…
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…
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…