How to be causal: time, spacetime, and spectra

@article{Kinsler2011HowTB,
  title={How to be causal: time, spacetime, and spectra},
  author={P. Kinsler},
  journal={arXiv: Classical Physics},
  year={2011}
}
  • P. Kinsler
  • Published 2011
  • Physics
  • arXiv: Classical Physics
I explain a simple definition of causality in widespread use, and indicate how it links to the Kramers Kronig relations. The specification of causality in terms of temporal differential eqations then shows us the way to write down dynamical models so that their causal nature /in the sense used here/ should be obvious to all. To extend existing treatments of causality that work only in the frequency domain, I derive a reformulation of the long-standing Kramers Kronig relations applicable not… Expand
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