Testing Bell inequalities at the LHC with top-quark pairs

Abstract

Entanglement between the spins of top-quark pairs produced at a collider can be used to test a (generalized) Bell inequality at energies never explored so far. We show how the measurement of a single observable can provide a test of the violation of the Bell inequality at the 98% CL with the data already collected at the Large Hadron Collider and at the 99.99% CL with the higher luminosity of the next run.

arXiv comment4 pages, 1 figure

References in corpus (30)

• Quantum entanglement
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Bell nonlocality
• Parton distributions with LHC data
• Significant-loophole-free test of Bell's theorem with entangled photons
• Research on Hidden Variable Theories: a review of recent progresses
• Distributions and correlations for top quark pair production and decay at the Tevatron and LHC.
• Entanglement and quantum tomography with top quarks at the LHC
• Top quark spin correlations at hadron colliders: Predictions at next-to-leading order QCD
• Measurement of the Top Quark Mass Using Dilepton Events
• Spin Correlation Effects in Top Quark Pair Production at the LHC
• Observation of spin correlation in ttbar events from pp collisions at sqrt(s) = 7 TeV using the ATLAS detector
• A quantum information theoretic analysis of three flavor neutrino oscillations
• Measurement of the top quark polarization and $\mathrm{t}\bar{\mathrm{t}}$ spin correlations using dilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Top quark spin correlations and polarization at the LHC: standard model predictions and effects of anomalous top chromo moments
• Measurement of Spin Correlation in Top-Antitop Quark Events and Search for Top Squark Pair Production in pp Collisions at $\sqrt{s}=8$ TeV Using the ATLAS Detector
• Maximal Entanglement in High Energy Physics
• Measurements of t t-bar spin correlations and top-quark polarization using dilepton final states in pp collisions at sqrt(s) = 7 TeV
• A set of top quark spin correlation and polarization observables for the LHC: Standard Model predictions and new physics contributions
• Bell inequality and CP violation in the neutral kaon system
• Measurements of top-quark pair spin correlations in the $e\mu$ channel at $\sqrt{s}=13$ TeV using $pp$ collisions in the ATLAS detector
• Measurements of spin correlation in top-antitop quark events from proton-proton collisions at $\sqrt{s}=7$ TeV using the ATLAS detector
• Nonlocal Correlation of Spin in High Energy Physics
• Quantum correlations in B and K meson systems
• Three-party entanglement from positronium
• Measurements of top quark spin observables in $t\bar{t}$ events using dilepton final states in $\sqrt{s}=8$ TeV $pp$ collisions with the ATLAS detector
• Testing Bell's Inequality using Charmonium Decays
• Dissipative contributions to epsilon'/epsilon

Cited by in corpus (18)

• Entanglement and quantum tomography with top quarks at the LHC
• Quantum tops at the LHC: from entanglement to Bell inequalities
• Quantum information with top quarks in QCD
• Improved tests of entanglement and Bell inequalities with LHC tops
• Quantum discord and steering in top quarks at the LHC
• Testing entanglement and Bell inequalities in $H\to ZZ$
• Constraining new physics in entangled two-qubit systems: top-quark, tau-lepton and photon pairs
• Quantum state tomography, entanglement detection and Bell violation prospects in weak decays of massive particles
• Quantum SMEFT tomography: top quark pair production at the LHC
• Quantum information and CP measurement in $H\to {\tau }^{+}{\tau }^{-}$ at future lepton colliders
• Measurement of Bell-type inequalities and quantum entanglement from $\Lambda$-hyperon spin correlations at high energy colliders
• Quantum entanglement and top spin correlations in SMEFT at higher orders
• Laboratory-frame tests of quantum entanglement in $H\to WW$
• Quantum anomaly detection in the latent space of proton collision events at the LHC
• Maximally entangled proton and charged hadron multiplicity in Deep Inelastic Scattering
• Bell inequalities in 2-2 scattering
• Resolving Combinatorial Ambiguities in Dilepton $t\bar{t}$ Event Topologies with Neural Networks
• Quantum speed of evolution of neutral mesons