Influence of Quantum Decoherence on the Survival of Neutrino Oscillation Quantumness

• URL: http://arxiv.org/abs/2605.24654v1
• Date: Sat, 23 May 2026 16:53:36 GMT
• Title: Influence of Quantum Decoherence on the Survival of Neutrino Oscillation Quantumness
• Abstract summary: We analyze three complementary quantum-correlation measures-entanglement of formation, quantum discord, and local quantum uncertainty.<n>Results provide a compact quantum-information description of two-flavor neutrino oscillations in both coherent and dephased regimes.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This study examines the dynamics of quantumness in two-flavor neutrino oscillations subjected to a dephasing channel, using representative oscillation parameters associated with the KamLAND, MINOS, and Daya Bay experiments. We analyze three complementary quantum-correlation measures-entanglement of formation (EOF), quantum discord (QD), and local quantum uncertainty (LQU)-within an effective two-qubit description. In the unitary case, all three measures display oscillatory behavior controlled by flavor mixing, and their amplitudes are strongly shaped by the relevant mixing angle. MINOS exhibits the largest correlations because $θ_{23}$ is close to maximal, KamLAND shows intermediate values associated with the solar sector, and Daya Bay yields smaller correlations due to the relatively small value of $θ_{13}$. Under dephasing, the off-diagonal coherence terms are suppressed and the three quantifiers decrease accordingly, while QD remains non-zero in regimes where entanglement is weak. For pure states, LQU satisfies $\mathcal{U}=\mathcal{C}^2$ and therefore tracks entanglement monotonically, whereas QD provides a broader witness of non-classical correlations. These results provide a compact quantum-information description of two-flavor neutrino oscillations in both coherent and dephased regimes. We also quantify the sensitivity of these observables to oscillation and decoherence parameters, showing that their main added value relative to flavor probabilities is their direct response to off-diagonal coherence loss.

Related papers

• Quantum theory of a three-photon Kerr parametric oscillator [75.2200279238806]
  We investigate the quantum properties of a nonlinear Kerr oscillator driven by a three-photon pump.<n>We show that the squeezing can be enhanced, suppressed, or even reversed, leading to a squeezing-to-anti-squeezing transition.
  arXiv  Detail & Related papers  (2026-05-20T11:14:54Z)
• Entanglement and Quantum Coherence in Coupled Double Quantum Dots under Markovian and Non-Markovian Noisy Channels [0.09236074230806578]
  We investigate the dynamics of quantum correlations, quantified by the concurrence and the quantum coherence, in a bipartite system of coupled double quantum dots.<n>Results provide valuable insights into the control and protection of quantum correlations in realistic solid-state systems.
  arXiv  Detail & Related papers  (2026-04-18T23:55:39Z)
• Tripartite Entanglement in Multimode Cavity Quantum Electrodynamics [37.69303106863453]
  We numerically investigate the generation and dynamics of tripartite entanglement among qubits in multimode cavity quantum electrodynamics.<n>Our results hold promise for the development of entanglement-based quantum networking protocols and quantum memories.
  arXiv  Detail & Related papers  (2025-07-16T03:53:14Z)
• Emergence of non-Abelian SU(2) invariance in Abelian frustrated fermionic ladders [37.69303106863453]
  We consider a system of interacting spinless fermions on a two-leg triangular ladder with $pi/2$ magnetic flux per triangular plaquette. Microscopically, the system exhibits a U(1) symmetry corresponding to the conservation of total fermionic charge, and a discrete $mathbbZ$ symmetry. At the intersection of the three phases, the system features a critical point with an emergent SU(2) symmetry.
  arXiv  Detail & Related papers  (2023-05-11T15:57:27Z)
• Observing super-quantum correlations across the exceptional point in a single, two-level trapped ion [48.7576911714538]
  In two-level quantum systems - qubits - unitary dynamics theoretically limit these quantum correlations to $2qrt2$ or 1.5 respectively. Here, using a dissipative, trapped $40$Ca$+$ ion governed by a two-level, non-Hermitian Hamiltonian, we observe correlation values up to 1.703(4) for the Leggett-Garg parameter $K_3$. These excesses occur across the exceptional point of the parity-time symmetric Hamiltonian responsible for the qubit's non-unitary, coherent dynamics.
  arXiv  Detail & Related papers  (2023-04-24T19:44:41Z)
• Optical and atomic decoherence in entangled atomic ensembles generated by quantum nondemolition measurements [5.301892337432412]
  We study the effects of decoherence in the form of optical phase diffusion, photon loss and gain, and atomic dephasing in entangled atomic ensembles. For the optical decoherence channels, we use the technique of integration within ordered operators (IWOP) to obtain the Kraus operators that describe the decoherence.
  arXiv  Detail & Related papers  (2023-02-25T11:16:22Z)
• Trade-off relations of quantum resource theory in neutrino oscillations [9.036748351752362]
  The measure of quantumness in experimentally observed neutrino oscillations (NOs) is studied via quantum resource theory (QRT) Here, we focus on the trade-off relations of QRT in the three-flavor NOs, based on Bell-type violations, first-order coherence and intrinsic concurrence, and the relative entropy of coherence. The trade-off relations of QRT provide a method for studying how the quantum resources convert and distribute in NOs, which might inspire the future applications in quantum information processing using neutrinos.
  arXiv  Detail & Related papers  (2022-12-19T09:38:13Z)
• Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
  We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation. We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
  arXiv  Detail & Related papers  (2022-07-07T09:39:40Z)
• Quantum correlations, entanglement spectrum and coherence of two-particle reduced density matrix in the Extended Hubbard Model [62.997667081978825]
  We study the ground state properties of the one-dimensional extended Hubbard model at half-filling. In particular, in the superconducting region, we obtain that the entanglement spectrum signals a transition between a dominant singlet (SS) to triplet (TS) pairing ordering in the system.
  arXiv  Detail & Related papers  (2021-10-29T21:02:24Z)
• Measurement of Bell-type inequalities and quantum entanglement from $\Lambda$-hyperon spin correlations at high energy colliders [0.0]
  Spin correlations of $Lambda$-hyperons embedded in the QCD strings formed in high energy collider experiments provide unique insight into their locality and entanglement features. We show that while the Clauser-Horne-Shimony-Holt inequality is less stringent for such states, they provide a benchmark for quantum-to-classical transitions induced by varying i) the associated hadron, ii) the spin of nucleons,iii) the separation in rapidity between pairs, and iv) the kinematic accessed.
  arXiv  Detail & Related papers  (2021-07-27T18:00:02Z)
• Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
  Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator. We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
  arXiv  Detail & Related papers  (2021-07-23T07:30:57Z)
• Dirac-type nodal spin liquid revealed by refined quantum many-body solver using neural-network wave function, correlation ratio, and level spectroscopy [0.0]
  We show that a machine-learning method for quantum many-body systems has achieved state-of-the-art accuracy. This achievement demonstrates that the quantum-state representation using machine learning techniques is a promising tool for investigating grand challenges in quantum many-body physics.
  arXiv  Detail & Related papers  (2020-05-28T16:54:47Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.