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arXiv:2607.07902 · The European Physical Journal C

Environmental Memory Effects and Quantum Resource Hierarchies in Polarized Hyperon--Antihyperon Systems

Omar Bachain, Mohamed Amazioug, Rachid Ahl Laamara

quant-phSubmitted Jul 8, 2026• Announced Jul 10, 2026• 0 citations
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Abstract

Hyperon--antihyperon pairs produced in $e^{+}e^{-}\rightarrow J/ψ\rightarrow Y\bar{Y}$ ($Y=Λ,Σ^{+},Ξ^{-},Ξ^{0}$) constitute a unique high-energy platform for probing quantum correlations through experimentally accessible spin observables. We investigate the impact of correlated dephasing environments on the stationary and dynamical properties of logarithmic negativity, geometric quantum discord, and $l_{1}$-norm quantum coherence under both longitudinal and transverse beam polarizations. Our analysis reveals that environmental memory plays a crucial role in preserving quantum resources. In the non-Markovian regime, information backflow generates recurrent revivals of quantum correlations and significantly delays decoherence, whereas Markovian evolution drives the system toward asymptotic stationary states through an irreversible loss of quantum information. The influence of beam polarization is found to be strongly channel dependent and can substantially enhance the amount of accessible quantum correlations. A comparative investigation of different quantifiers uncovers a clear hierarchy of quantum resources. Quantum coherence remains robust over the widest parameter range, geometric quantum discord survives even in regions where entanglement is strongly reduced, while logarithmic negativity is the most sensitive to environmental degradation. This hierarchy persists for all considered hyperon channels and under both polarization configurations. The dependence of quantum resources on the production angle, azimuthal angle, polarization degree, and memory parameter is examined using experimental inputs from BESIII. The predicted effects are found to be compatible with the precision expected at BESIII and future high-luminosity facilities such as STCF and CEPC.

Related papers

Comment on "Environmental memory effects and quantum resource hierarchies in polarized hyperon--antihyperon systems"

Saeed Haddadi

We comment on the recent work [Eur. Phys. J. C 86, 988 (2026)], which investigates quantum resources in polarized hyperon--antihyperon systems using correlated dephasing channels with memory. Although the use of experimentally reconstructed spin-density matrices to characterize quantum correlations in hyperon production may be a good motivation, we argue that the interpretation of the hyperon--antihyperon pair as an open quantum system undergoing correlated environmental decoherence is not physically established. In particular, no physical environment or system--environment interaction responsible for the assumed correlated dephasing channel is identified, and hadronization cannot simply be interpreted as such an environmental dephasing process. Consequently, the claimed non-Markovianity, information backflow, and memory-assisted protection of quantum resources should be regarded as properties of a phenomenological channel rather than established physical effects in hyperon--antihyperon production. We also identify several technical and conceptual issues concerning the dephasing dynamics, entanglement quantification, basis dependence of coherence, and the claimed hierarchy of quantum resources. These issues call for a substantial revision of the physical interpretation and quantitative conclusions of the work. We hope that the present Comment will help clarify the distinction between phenomenological quantum-channel modeling and physically established dynamical mechanisms in high-energy particle systems, and thereby provide useful guidance for future studies and help avoid similar conceptual and technical issues.

quant-pharXiv:2609.01686•Sep 2, 2026•0 citations

Controlling the dynamical evolution of quantum coherence and quantum correlations in e + e − → Λ Λ ¯ processes at BESIII

Elhabib Jaloum, Mohamed Amazioug

Quantum coherence, a cornerstone of quantum mechanics, is of paramount importance for quantum information protocols. However, maintaining coherence in elementary particle systems presents significant challenges. In this work, we investigate quantum coherence and quantum correlations in the e + e − → Λ Λ ¯ processes at BESIII using experimentally feasible parameters, where Λ and Λ ¯ denote the spin- 1 / 2 hyperon and its antihyperon, respectively. We analyze the dependence of quantum coherence and quantum correlations on the scattering angle φ . Notably, these resources reach their maximum at φ = π / 2 . We demonstrate that classical correlations can significantly delay the decay of quantum correlations and coherence. This study underscores the importance of understanding the interplay between classical and quantum correlations in high-energy particle physics, particularly in the context of hyperon-antihyperon interactions explored in the BESIII experiment. Furthermore, we discuss the hierarchy of quantum resources (quantum steering, entanglement of formation, geometric quantum discord, and quantum coherence) in both Markovian and non-Markovian regimes. This result could have potential applications in quantum information processing and high-energy physics.

arXiv:2510.25615•Physical review. D/Physical review. D.•Sep 10, 2025•6 citations

Dephasing Effects on the Dynamical Evolution of Quantum Correlations and Coherence in Neutrino Oscillations

Omar Bachain, Elhabib Jaloum, Mohamed Amazioug +4 more

Neutrino oscillations confirm the presence of mode entanglement, as each flavor eigenstate is composed of a coherent superposition of distinct mass eigenstates. In this work, we investigate the dynamics of quantum resources in neutrino oscillation systems by analyzing quantum steering, logarithmic negativity, and quantum coherence within a two-flavor framework. Treating neutrino oscillations as an effective two-level quantum system, we study the influence of environmental decoherence on these nonclassical features by modeling the system as an open quantum system. Three representative noise channels are considered, namely amplitude damping (AD), phase flip (PF), and phase damping (PD), allowing us to capture both dissipative and dephasing mechanisms. We examine the evolution of quantum resources in both Markovian and non-Markovian regimes, highlighting the role of memory effects in the system-environment interaction. The results reveal a clear hierarchy in the robustness of quantum resources under decoherence. Steering is the most sensitive correlation in the hierarchy under decoherence effects. while logarithmic negativity exhibits intermediate robustness. Quantum coherence displays the highest resilience, persisting over a wider range of parameters. In the PF and PD channels, logarithmic negativity and coherence are shown to exhibit identical dynamical behavior, reflecting their common dependence on phase-related noise. In contrast, the non-Markovian regime leads to delayed decoherence and partial revivals of entanglement and coherence due to information backflow, whereas quantum steering remains strongly suppressed. These findings provide a comparison of different quantum resources in neutrino oscillation systems and offer new insights into the interplay between decoherence mechanisms and quantum correlations.

quant-pharXiv:2605.05015•May 7, 2026•0 citations

Controlling Quantum discord and steering in Electron-Positron Annihilation Using Polarized Beams

Hong-Wei Zhang, Xu Cao, Tai-Fu Feng

Quantum discord and steering offer crucial insights into the non-classical nature of hyperon-antihyperon pairs, a massive two-qubit system produced in high energy electron-positron annihilation. This work theoretically investigates the generation and control of these quantum correlations by leveraging longitudinal and transverse polarization of lepton beams. By exploiting the joint spin density matrix of hyperon pairs, the sensitivity of quantum discord and steering to the beam polarization degree are numerically quantified. Our analysis reveals distinct angular regimes where beam polarization can enhance steering and discord. Hierarchy of different quantum correlations are examined under the case of polarized lepton beams by constructing a measure in the spirit of entanglement of formation. It is confirmed that quantum discord remain non-zero even in regions with vanishing entanglement corresponding to separable states, controlled via transversely polarized beams. As an experimentally tunable parameter, beam polarization offers an effective means to manipulate the quantum correlation of hyperon-antihyperon systems, thereby providing a practical route for preparing and probing quantum states in high-energy particle physics.

arXiv:2605.19642•May 19, 2026•0 citations

Quantum steering and discord in hyperon-antihyperon system in electron-positron annihilation

Sihao Wu, Chen Qian, Qun Wang +1 more

Hyperon-antihyperon pairs produced from electron-positron annihilations provide a promising platform for exploring quantum-information properties in particle physics. In this work, we analyze quantum steering and quantum discord in hyperon-antihyperon systems produced from e + e − annihilations, based on the X -shaped spin density matrix reconstructed via quantum state tomography. We show that the behaviors of these correlations differ from those observed in elementary particle-antiparticle systems such as top quarks and τ leptons, owing to the polarization effects specific to hyperon decays. From the results, we examine the hierarchy of quantum correlations in hyperon-antihyperon systems, Bell nonlocality ⊂ steering ⊂ entanglement ⊂ discord . We also discuss the role of experimental loopholes and the impact of quantum decoherence in collider-based studies of quantum correlations.

arXiv:2509.14990•Physical review. D/Physical review. D.•Mar 5, 2026•3 citations

Reply to Comment on "Controlling the Dynamical Evolution of Quantum Coherence and Quantum Correlations in $e^{+}e^{-} \to Λ\barΛ$ Processes at BESIII"

Elhabib Jaloum, Mohamed Amazioug

In the annihilation process $e^+e^- \to J/ψ\to Λ\barΛ$ via $J/ψ$, the hyperon--antihyperon pair emerges from the same non-perturbative QCD hadronization process, where both spins develop in a common dense partonic environment. We describe the evolution of the $Λ\barΛ$ spin degrees of freedom using correlated quantum channels that represent the effective influence of the common QCD hadronization environment on the two-spin system. The parameter $μ$ characterizes the degree of environmental correlation resulting from the common hadronization process. Using the experimentally reconstructed spin density matrix, we evaluate quantum steering and investigate its robustness and dynamical evolution under correlated Markovian and non-Markovian quantum channels.

quant-pharXiv:2605.03831•May 6, 2026•0 citations
Hyperon--antihyperon pairs produced in e+e−→J/ψ→YYˉe^{+}e^{-}\rightarrow J/ψ\rightarrow Y\bar{Y}e+e−→J/ψ→YYˉ (Y=Λ,Σ+,Ξ−,Ξ0Y=Λ,Σ^{+},Ξ^{-},Ξ^{0}Y=Λ,Σ+,Ξ−,Ξ0) constitute a unique high-energy platform for probing quantum correlations through experimentally accessible spin observables. We investigate the impact of correlated dephasing environments on the stationary and dynamical properties of logarithmic negativity, geometric quantum discord, and l1l_{1}l1​-norm quantum coherence under both longitudinal and transverse beam polarizations. Our analysis reveals that environmental memory plays a crucial role in preserving quantum resources. In the non-Markovian regime, information backflow generates recurrent revivals of quantum correlations and significantly delays decoherence, whereas Markovian evolution drives the system toward asymptotic stationary states through an irreversible loss of quantum information. The influence of beam polarization is found to be strongly channel dependent and can substantially enhance the amount of accessible quantum correlations. A comparative investigation of different quantifiers uncovers a clear hierarchy of quantum resources. Quantum coherence remains robust over the widest parameter range, geometric quantum discord survives even in regions where entanglement is strongly reduced, while logarithmic negativity is the most sensitive to environmental degradation. This hierarchy persists for all considered hyperon channels and under both polarization configurations. The dependence of quantum resources on the production angle, azimuthal angle, polarization degree, and memory parameter is examined using experimental inputs from BESIII. The predicted effects are found to be compatible with the precision expected at BESIII and future high-luminosity facilities such as STCF and CEPC.
We comment on the recent work [Eur. Phys. J. C 86, 988 (2026)], which investigates quantum resources in polarized hyperon--antihyperon systems using correlated dephasing channels with memory. Although the use of experimentally reconstructed spin-density matrices to characterize quantum correlations in hyperon production may be a good motivation, we argue that the interpretation of the hyperon--antihyperon pair as an open quantum system undergoing correlated environmental decoherence is not physically established. In particular, no physical environment or system--environment interaction responsible for the assumed correlated dephasing channel is identified, and hadronization cannot simply be interpreted as such an environmental dephasing process. Consequently, the claimed non-Markovianity, information backflow, and memory-assisted protection of quantum resources should be regarded as properties of a phenomenological channel rather than established physical effects in hyperon--antihyperon production. We also identify several technical and conceptual issues concerning the dephasing dynamics, entanglement quantification, basis dependence of coherence, and the claimed hierarchy of quantum resources. These issues call for a substantial revision of the physical interpretation and quantitative conclusions of the work. We hope that the present Comment will help clarify the distinction between phenomenological quantum-channel modeling and physically established dynamical mechanisms in high-energy particle systems, and thereby provide useful guidance for future studies and help avoid similar conceptual and technical issues.
Quantum coherence, a cornerstone of quantum mechanics, is of paramount importance for quantum information protocols. However, maintaining coherence in elementary particle systems presents significant challenges. In this work, we investigate quantum coherence and quantum correlations in the e + e − → Λ Λ ¯ processes at BESIII using experimentally feasible parameters, where Λ and Λ ¯ denote the spin- 1 / 2 hyperon and its antihyperon, respectively. We analyze the dependence of quantum coherence and quantum correlations on the scattering angle φ . Notably, these resources reach their maximum at φ = π / 2 . We demonstrate that classical correlations can significantly delay the decay of quantum correlations and coherence. This study underscores the importance of understanding the interplay between classical and quantum correlations in high-energy particle physics, particularly in the context of hyperon-antihyperon interactions explored in the BESIII experiment. Furthermore, we discuss the hierarchy of quantum resources (quantum steering, entanglement of formation, geometric quantum discord, and quantum coherence) in both Markovian and non-Markovian regimes. This result could have potential applications in quantum information processing and high-energy physics.
Neutrino oscillations confirm the presence of mode entanglement, as each flavor eigenstate is composed of a coherent superposition of distinct mass eigenstates. In this work, we investigate the dynamics of quantum resources in neutrino oscillation systems by analyzing quantum steering, logarithmic negativity, and quantum coherence within a two-flavor framework. Treating neutrino oscillations as an effective two-level quantum system, we study the influence of environmental decoherence on these nonclassical features by modeling the system as an open quantum system. Three representative noise channels are considered, namely amplitude damping (AD), phase flip (PF), and phase damping (PD), allowing us to capture both dissipative and dephasing mechanisms. We examine the evolution of quantum resources in both Markovian and non-Markovian regimes, highlighting the role of memory effects in the system-environment interaction. The results reveal a clear hierarchy in the robustness of quantum resources under decoherence. Steering is the most sensitive correlation in the hierarchy under decoherence effects. while logarithmic negativity exhibits intermediate robustness. Quantum coherence displays the highest resilience, persisting over a wider range of parameters. In the PF and PD channels, logarithmic negativity and coherence are shown to exhibit identical dynamical behavior, reflecting their common dependence on phase-related noise. In contrast, the non-Markovian regime leads to delayed decoherence and partial revivals of entanglement and coherence due to information backflow, whereas quantum steering remains strongly suppressed. These findings provide a comparison of different quantum resources in neutrino oscillation systems and offer new insights into the interplay between decoherence mechanisms and quantum correlations.
Quantum discord and steering offer crucial insights into the non-classical nature of hyperon-antihyperon pairs, a massive two-qubit system produced in high energy electron-positron annihilation. This work theoretically investigates the generation and control of these quantum correlations by leveraging longitudinal and transverse polarization of lepton beams. By exploiting the joint spin density matrix of hyperon pairs, the sensitivity of quantum discord and steering to the beam polarization degree are numerically quantified. Our analysis reveals distinct angular regimes where beam polarization can enhance steering and discord. Hierarchy of different quantum correlations are examined under the case of polarized lepton beams by constructing a measure in the spirit of entanglement of formation. It is confirmed that quantum discord remain non-zero even in regions with vanishing entanglement corresponding to separable states, controlled via transversely polarized beams. As an experimentally tunable parameter, beam polarization offers an effective means to manipulate the quantum correlation of hyperon-antihyperon systems, thereby providing a practical route for preparing and probing quantum states in high-energy particle physics.
Hyperon-antihyperon pairs produced from electron-positron annihilations provide a promising platform for exploring quantum-information properties in particle physics. In this work, we analyze quantum steering and quantum discord in hyperon-antihyperon systems produced from e + e − annihilations, based on the X -shaped spin density matrix reconstructed via quantum state tomography. We show that the behaviors of these correlations differ from those observed in elementary particle-antiparticle systems such as top quarks and τ leptons, owing to the polarization effects specific to hyperon decays. From the results, we examine the hierarchy of quantum correlations in hyperon-antihyperon systems, Bell nonlocality ⊂ steering ⊂ entanglement ⊂ discord . We also discuss the role of experimental loopholes and the impact of quantum decoherence in collider-based studies of quantum correlations.
Reply to Comment on "Controlling the Dynamical Evolution of Quantum Coherence and Quantum Correlations in e+e−→ΛΛˉe^{+}e^{-} \to Λ\barΛe+e−→ΛΛˉ Processes at BESIII"
In the annihilation process e+e−→J/ψ→ΛΛˉe^+e^- \to J/ψ\to Λ\barΛe+e−→J/ψ→ΛΛˉ via J/ψJ/ψJ/ψ, the hyperon--antihyperon pair emerges from the same non-perturbative QCD hadronization process, where both spins develop in a common dense partonic environment. We describe the evolution of the ΛΛˉΛ\barΛΛΛˉ spin degrees of freedom using correlated quantum channels that represent the effective influence of the common QCD hadronization environment on the two-spin system. The parameter μμμ characterizes the degree of environmental correlation resulting from the common hadronization process. Using the experimentally reconstructed spin density matrix, we evaluate quantum steering and investigate its robustness and dynamical evolution under correlated Markovian and non-Markovian quantum channels.