Two-particle irreducible effective action approach to nonlinear current-conserving approximations in driven systems
Using closed-time-path two-particle irreducible coarse-grained effective action (CTP 2PI CGEA) techniques, we study the response of an open interacting electronic system to time-dependent external electromagnetic fields. We show that the CTP 2PI CGEA is invariant under a simultaneous gauge transform...
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| Autores principales: | Peralta-Ramos, J., Calzetta, E. |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09538984_v21_n21_p_PeraltaRamos |
| Aporte de: |
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