On the evolution of an entangled lepton-neutrino pair
Balazs Meszena, Andras Patkos
TL;DR
This paper investigates how entangled muon-neutrino pairs evolve over time in different environments, providing explicit formulas that reveal oscillation modulation and disentanglement effects, advancing understanding of quantum behavior in particle physics.
Contribution
It introduces a wave-packet model for entangled lepton-neutrino systems, deriving explicit formulas for their evolution and disentanglement effects in vacuum and matter.
Findings
Oscillation modulation due to production time scales
Attenuation of oscillations in matter
Disentanglement effects upon muon detection
Abstract
The evolution of the entangled muon-neutrino system emerging from charged pion decay is explored both in vacuum and in matter. The study is based on a Weisskopf-Wigner type wave-packet description. Explicit formulae are derived displaying modulation and attenuation of the oscillations due to additional time scales characterising the production process. The case of neutrinos disentangled due to the detection of the muon is also considered.
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