(Non) equilibrium dynamics: a (broken) symmetry of the Keldysh generating functional
We unveil the universal (model-independent) symmetry satisfied by Schwinger-Keldysh quantum field theories whenever they describe equilibrium dynamics. This is made possible by a generalization of the Schwinger-Keldysh path-integral formalism in which the physical time can be re-parametrized to arbi...
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| Format: | Article |
| Language: | English |
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SciPost
2018-01-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.4.1.008 |