Causal signal transmission by quantum fields. I. Response of the harmonic oscillator
arXiv:0804.4088 · doi:10.1016/j.aop.2007.11.013
Abstract
It is shown that response properties of a quantum harmonic oscillator are in essence those of a classical oscillator, and that, paradoxical as it may be, these classical properties underlie all quantum dynamical properties of the system. The results are extended to non-interacting bosonic fields, both neutral and charged.
Accepted to Annals of Physics
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