• Corpus ID: 245131369

The Uncertainty Principle and Classical Amplitudes

  title={The Uncertainty Principle and Classical Amplitudes},
  author={Andrea Cristofoli and Riccardo Gonzo and Nathan Moynihan and Donal O’Connell and Alasdair Ross and Matteo Sergola and Chris D. White},
We study the variance in the measurement of observables during scattering events, as computed using amplitudes. The classical regime, characterised by negligible uncertainty, emerges as a consequence of an infinite set of relationships among multileg, multiloop amplitudes in a momentum-transfer expansion. We discuss two non-trivial examples in detail: the six-point tree and the five-point one-loop amplitudes in scalar QED. We interpret these relationships in terms or a coherent exponentiation… 

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