Decoherence and infrared divergence
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🧮 math-ph
math.MP
keywords
fieldbosoninfraredparticlebelowboundedcoupleddecoherence
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The dynamics of a particle which is linearly coupled to a boson field is investigated. The boson field induces superselection rules for the momentum of the particle, if the field is infrared divergent. Thereby the Hamiltonian of the total system remains bounded from below.
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