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Extracting Real-Time Quantities from Euclidean Field Theory

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If you have a question about this talk, please contact Dr Jock McOrist .

In the context of Quantum Chromodynamics, non-perturbative observables such as the low-lying spectrum of hadrons can be extracted from the theory discretized on a Euclidean space-time lattice and simulated on a computer. Real-time quantities on the other hand, such as phase shifts, resonance widths, or transport properties at finite temperature, cannot be straightforwardly computed. In some cases however real-time effects leave signatures in the Euclidean theory which can be isolated in certain kinematical regimes. I describe several examples of this type at zero and finite-temperature.

This talk is part of the Theoretical Physics Colloquium series.

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