Entanglement and collective flavor oscillations in a dense neutrino gas

2019/08/31 by Michael J. Cervia, Amol V. Patwardhan, A. B. Balantekin +2 · 3 citations
Mathematics · Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Density matrix #Entropy (arrow of time) #Field (mathematics) #Mathematics #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Physics #Quantum #Quantum entanglement #Quantum mechanics #Statistical physics #Strong Light-Matter Interactions #Theoretical physics #astro-ph.HE #hep-ph #nucl-th #quant-ph

paper · pdf · doi:10.1103/physrevd.100.083001

published as Phys. Rev. D 100, 083001 (2019) · 17 pages of RevTeX, 9 figures

openalex publication_date 2019/10/02 · arxiv created 2019/10/08 · arxiv updated 2019/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We investigate the importance of going beyond the mean-field approximation in the dynamics of collective neutrino oscillations. To expand our understanding of the coherent neutrino oscillation problem, we apply concepts from many-body physics and quantum information theory. Specifically, we use measures of nontrivial correlations (otherwise known as ``entanglement'') between the constituent neutrinos of the many-body system, such as the entanglement entropy and the Bloch vector of the reduced density matrix. The relevance of going beyond the mean field is demonstrated by comparisons between the evolution of the neutrino state in the many-body picture vs the mean-field limit, for different initial conditions.

Citations

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• Collective Neutrino Oscillations
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Cited by

• Quantum Simulation of Collective Neutrino Oscillations using Dicke States
• Simulation of collective neutrino oscillations on a quantum computer
• Three-flavor supernova neutrino simulation using a hybrid quantum-classical algorithm with qutrits