Top quark spin and quantum entanglement in the ATLAS experiment
Roman Lysak
TL;DR
This paper reports on measurements of top quark pair spin correlations and quantum entanglement observed in proton-proton collisions at the LHC, providing experimental evidence of fundamental quantum properties.
Contribution
It presents the first measurement of a specific observable related to top quark spin correlations using full LHC Run 2 data, demonstrating quantum entanglement in top quark pairs.
Findings
Observation of quantum entanglement in top quark pairs
Measurement of spin correlation observable D at 13 TeV
Confirmation of quantum mechanics principles in high-energy particle collisions
Abstract
Top quark pair spin correlation measurements performed by the ATLAS experiment using collisions at the CERN Large Hadron Collider are summarized. Moreover, the measurement of a specific observable related to top quark pair spin correlations is presented using the full LHC Run 2 data taking at the center-of-mass energy of TeV. This allowed the ATLAS experiment to observe the quantum entanglement, one of the fundamental property of the quantum mechanics.
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