{"total":12,"items":[{"citing_arxiv_id":"2606.11296","ref_index":98,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Tripartite Entanglement in $e^+ e^- \\to t \\bar{t} Z$","primary_cat":"hep-ph","submitted_at":"2026-06-09T18:00:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Computes entanglement negativities for the tripartite spin system in e+e- -> ttZ and projects that collective entanglement is accessible but genuine multipartite entanglement has limited sensitivity at a polarized ILC with expected luminosity.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.30419","ref_index":69,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"New quantum information perspectives in the axion--photon and neutrino systems","primary_cat":"hep-ph","submitted_at":"2026-05-28T18:00:02+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Axion-photon oscillations generate bipartite mode entanglement with maximal values at resonance, and quantum speed limits are derived for both axion-photon and neutrino systems.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.02097","ref_index":9,"ref_count":2,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Separability from Multipartite Measures","primary_cat":"quant-ph","submitted_at":"2026-05-03T23:35:44+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Third-order negativity is a necessary and sufficient criterion for full separability of tripartite pure states and extends to mixed states and qudits.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"making it a natural candidate for a permutation-invariant entanglement diagnostic [8]. Therefore,τ ABC andI 5 illustrate that multipartite entanglement contains structures that cannot be captured solely by bipartite measures. ThePositive Partial Transposition (PPT) criterionprovides a powerful tool for detect- ing quantum entanglement in bipartite systems [9]. For a density matrixρ, one considers its partial transpose. Ifρis separable, then all eigenvalues of its partial transpose are nonnegative [9]. Therefore, the presence of any negative eigenvalue signals quantum entanglement [9]. This idea underliesnegativity[10] andlogarithmic negativity[11], which are widely-used entanglement measures [12, 13]:"},{"citing_arxiv_id":"2604.24496","ref_index":22,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Witnessing entanglement between photon and matter due to graviton exchange","primary_cat":"quant-ph","submitted_at":"2026-04-27T14:01:02+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A PPT witness criterion is proposed to detect graviton-mediated entanglement between photons and matter qubits, attaining a maximal negativity of -0.052 for non-maximally entangled states when the photon coherent-state overlap satisfies 0.71 ≤ |γ| < 1.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"a set of experimentally measurable correlations. Specifically, we express the witness through correlations between the spin degrees of freedom embedded in the matter and the Stokes ob- servables of the optical field. The position state can be read via the spin system, for example, in the case of a defect em- bedded in the matter, such as the nitrogen vacancy (NV) centre in diamond, see [22]. We will need a material that is easy to read the spin on, either optically or magnetically. While the properties of the coherent state of the photon will be read by measuring the Stokes observables, see [19, 23-25]. There are schemes to create superposition with a NV-centered nanodi- amonds, but the superposition sizes are typically very tiny in"},{"citing_arxiv_id":"2604.11887","ref_index":64,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Spin Correlation and Quantum Entanglement of Fermion Pairs in Transversely Polarized $e^-e^+$ Collisions","primary_cat":"hep-ph","submitted_at":"2026-04-13T18:00:03+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Transverse polarization in e+e- collisions generates maximally entangled fermion pairs in QED processes and boosts entanglement in electroweak and Bhabha scattering.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"of a state that arises from a quantum superposition. Magic, or non-stabilizerness, is the departure of a state from the set of stabilizer states generated by Clifford gates; these stabilizer states can be efficiently simulated on classical computers [63]. The transverse polarization of beams naturally exists in a circular accelerator due to Sokolov-Ternov effects [64], and the transverse polarization would also be an intermediate stage for preparing longitudinally polarized beams [65, 66]. In realistic situations where the initial states are not 100% transversely polarized, the final state is a mixed state that is partly composed of a Bell state, the percentage of which is determined by the degree of polarization."},{"citing_arxiv_id":"2604.11697","ref_index":68,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Quantum entanglement in electron-nucleus collisions: Role of the linearly polarized gluon distribution","primary_cat":"hep-ph","submitted_at":"2026-04-13T16:33:54+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"The linearly polarized gluon distribution enhances entanglement of heavy quark pairs in electron-nucleus collisions when total and relative transverse momenta are orthogonal.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"According to the Peres-Horodecki criterion [65, 66], if one of ∆'s is nonnegative, theq¯qpair is entangled [4, 67]. To quantify the entanglement, we can thus use the concurrence, C[ρ] = max{∆1/2,∆ 2/2,0},(C3) which ranges between 0 and 1.C[ρ] = 0 corresponds to a separable state, whileC[ρ] = 1 indicates a maximally entangled state. Bell-CHSH inequality .Another measure of quantum correlation is the violation of the Bell-CHSH inequality [68] Max{⃗ ni} na 1Cab(nb 2 +n b 4) +n a 3Cab(nb 2 −n b 4) ≤2,(C4) for unit vectors|⃗ ni|= 1 (i= 1,2,3,4). Given a correlation matrixC ab, this inequality is violated for certain choices of⃗ ni if the largest two of the three eigenvaluesµ 3 ≤µ 2 ≤µ 1 of the matrixC T C(the symbolTdenotes 'transpose') satisfy [69] 1< µ 1 +µ 2 ≤2.(C5) When this is the case, we say that the pair exhibit 'Bell-nonlocality."},{"citing_arxiv_id":"2603.26075","ref_index":38,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Minimal noise in non-quantized gravity","primary_cat":"quant-ph","submitted_at":"2026-03-27T05:06:51+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Non-quantized gravity models that preserve Galilean invariance and reproduce Newtonian interaction on average require a minimal noise injection to remain non-entangling.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2603.19389","ref_index":51,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Understanding Bell locality tests at colliders","primary_cat":"hep-ph","submitted_at":"2026-03-19T18:26:18+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Under mild assumptions, local hidden variable theories become testable at colliders and can be disproved via Bell-like inequalities for muon and tau pairs.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2510.17730","ref_index":119,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Automated computation of spin-density matrices and quantum observables for collider physics","primary_cat":"hep-ph","submitted_at":"2025-10-20T16:44:34+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"An automated framework in MadGraph5_aMC@NLO computes tree-level production spin-density matrices and quantum observables for generic collider processes, with validation on ttbar and VV and new applications to multi-top final states.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Yin,An Area Law for Entanglement Entropy in Particle Scattering,2405.08056. [117] J. Thaler and S. Trifinopoulos,Flavor patterns of fundamental particles from quantum entanglement?,Phys. Rev. D111(2025) 056021, [2410.23343]. [118] I. Chernyshev, C. E. P. Robin and M. J. Savage,Quantum magic and computational complexity in the neutrino sector,Phys. Rev. Res.7(2025) 023228, [2411.04203]. [119] T.-R. Hu, K. Sone, F.-K. Guo, T. Hyodo and I. Low,Entanglement Suppression, Quantum Statistics and Symmetries in Spin-3/2 Baryon Scatterings,2506.08960. [120] G. Busoni, J. Gargalionis, E. N. V. Wallace and M. J. White,Emergent symmetry in a two-Higgs-doublet model from quantum information and nonstabilizerness,Phys. Rev. D112 (2025) 035022, [2506."},{"citing_arxiv_id":"2509.00593","ref_index":71,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Genuine multientropy, dihedral invariants and Lifshitz theory","primary_cat":"hep-th","submitted_at":"2025-08-30T19:10:25+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Authors derive genuine multientropy for Lifshitz states as mutual information plus negativity, obtain its non-integer Rényi continuation, and prove dihedral invariants equal Rényi reflected entropies for general tripartite pure states.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2507.04885","ref_index":59,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Effect of Off-diagonal NSI Parameters on Entanglement Measurements in Neutrino Oscillations","primary_cat":"hep-ph","submitted_at":"2025-07-07T11:17:24+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Off-diagonal NSI parameters modify EOF, Concurrence and Negativity in neutrino oscillations, with largest effects at low energy and Negativity remaining dominant at higher energies while showing clear δ_CP dependence.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2212.11740","ref_index":64,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Separability and entanglement of resonating valence-bond states","primary_cat":"cond-mat.str-el","submitted_at":"2022-12-22T14:32:49+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Proves exact separability for disconnected subsystems in dimer RK states and exponentially suppressed entanglement for RVB states on arbitrary lattices, with negativity expressed via partition functions.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Sondhi, and P. Chandra, \"Phase diagram of the hexagonal lattice quantum dimer model,\" Phys. Rev. B 64, 144416 (2001), arXiv:cond-mat/0106288. [63] N. Shannon, G. Misguich, and K. Penc, \"Cyclic exchange, isolated states, and spinon deconfinement in an XXZ Heisenberg model on the checkerboard lattice,\" Phys. Rev. B 69, 220403 (2004), arXiv:cond-mat/0403729. [64] F. Alet, J. L. Jacobsen, G. Misguich, V. Pasquier, F. Mila, and M. Troyer, \"Interacting Classical Dimers on the Square Lattice,\" Phys. Rev. Lett. 94, 235702 (2005), arXiv:cond-mat/0501241. [65] O. F. Sylju˚ asen, \"Continuous-time diffusion Monte Carlo method applied to the quantum dimer model,\" Phys. Rev. B 71, 020401 (2005), arXiv:cond-mat/0408565."}],"limit":50,"offset":0}