The extraordinary quantum properties of nonequilibrium systems governed by dissipative dynamics have become a focal point in contemporary scientific inquiry. The nonequilibrium Green's functions (NEGF) theory provides a versatile method for addressing driven nondissipative systems, utilizing the powerful diagrammatic technique to incorporate correlation effects. We here present a second-quantization approach to the dissipative NEGF theory, reformulating Keldysh ideas to accommodate Lindbladian dynamics and extending the Kadanoff-Baym equations accordingly. Generalizing diagrammatic perturbation theory for many-body Lindblad operators, the formalism enables correlated and dissipative real-time simulations for the exploration of transient and steady-state changes in the electronic, transport, and optical properties of materials.

Stefanucci, G. (2024). Kadanoff-Baym Equations for Interacting Systems with Dissipative Lindbladian Dynamics. PHYSICAL REVIEW LETTERS, 133 [10.1103/PhysRevLett.133.066901].

Kadanoff-Baym Equations for Interacting Systems with Dissipative Lindbladian Dynamics

Stefanucci G.
2024-01-01

Abstract

The extraordinary quantum properties of nonequilibrium systems governed by dissipative dynamics have become a focal point in contemporary scientific inquiry. The nonequilibrium Green's functions (NEGF) theory provides a versatile method for addressing driven nondissipative systems, utilizing the powerful diagrammatic technique to incorporate correlation effects. We here present a second-quantization approach to the dissipative NEGF theory, reformulating Keldysh ideas to accommodate Lindbladian dynamics and extending the Kadanoff-Baym equations accordingly. Generalizing diagrammatic perturbation theory for many-body Lindblad operators, the formalism enables correlated and dissipative real-time simulations for the exploration of transient and steady-state changes in the electronic, transport, and optical properties of materials.
2024
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore PHYS-04/A - Fisica teorica della materia, modelli, metodi matematici e applicazioni
English
Con Impact Factor ISI
Dissipative dynamics; Feynman diagrams; Green's function methods; Lindblad equation; Many-body techniques; Mean field theory; Nonequilibrium Green's function; Second quantization
Stefanucci, G. (2024). Kadanoff-Baym Equations for Interacting Systems with Dissipative Lindbladian Dynamics. PHYSICAL REVIEW LETTERS, 133 [10.1103/PhysRevLett.133.066901].
Stefanucci, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/391665
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