Wick Rotation in Quantum Field Theory
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Mon, 18/01/2010 15:45 |
Professor Graem Segal (Oxford) |
Topology Seminar  |
L3 |
| Physical space-time is a manifold with a Lorentzianmetric, but the more mathematical treatments of the theory usually prefer toreplace the metric with a positive - i.e. Riemannian - one. The passage fromLorentzian to Riemannian metrics is called 'Wick rotation'. In my talk I shallgive a precise description of what is involved, and shall explain some of itsimplications for physics. | |||