A fully general open quantum system description of arbitrarily complex oscillating and decaying neutrino systems is developed and shown to be implementable via Lindblad equations, Liouvillian superoperators, and Kraus operators.
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DESI DR2 BAO and full-shape data plus CMB yield ∑m_ν < 0.0642 eV (95% CL) under ΛCDM, in 3σ tension with oscillation lower limits, relaxed to <0.163 eV in w0waCDM.
Neutrino invisible decays and a boomerang mechanism transferring particles between visible and dark sectors could resolve cosmological anomalies while predicting an observable effective magnetic moment.
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Visible Neutrino Decay As An Open Quantum System
A fully general open quantum system description of arbitrarily complex oscillating and decaying neutrino systems is developed and shown to be implementable via Lindblad equations, Liouvillian superoperators, and Kraus operators.
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Constraints on Neutrino Physics from DESI DR2 BAO and DR1 Full Shape
DESI DR2 BAO and full-shape data plus CMB yield ∑m_ν < 0.0642 eV (95% CL) under ΛCDM, in 3σ tension with oscillation lower limits, relaxed to <0.163 eV in w0waCDM.
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How neutrinos could help solving cosmological anomalies and tensions
Neutrino invisible decays and a boomerang mechanism transferring particles between visible and dark sectors could resolve cosmological anomalies while predicting an observable effective magnetic moment.