Timeline for Is Wick rotation of loop integrals legitimate?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 25, 2018 at 1:16 | history | tweeted | twitter.com/StackPhysics/status/988949828544671744 | ||
| Apr 24, 2018 at 20:23 | comment | added | QuantumDot | We also require that the integral has no singularities in the complex $k^0$ plane in first and third quadrants. This important requirement can be proven for arbitrary loop integrals with some work. | |
| Apr 24, 2018 at 18:10 | comment | added | AccidentalFourierTransform | related: Wick rotation in field theory - rigorous justification? and links therein. | |
| Apr 24, 2018 at 18:08 | comment | added | AccidentalFourierTransform | Strictly speaking, you should only Wick rotate absolutely convergent integrals, so you must introduce a regulator first. In dimReg, the Wick rotation is part of the definition of the regularisation procedure and, as of today, no inconsistency has been found in this prescription. But yeah, it's not perfectly justified. | |
| Apr 24, 2018 at 18:01 | history | asked | gj255 | CC BY-SA 3.0 |