Related papers: Dissipative Dynamics in Open Fermionic Chains

Dissipative Dynamics in Open Fermionic Chains

URL: http://arxiv.org/abs/2303.02747v2
Date: Mon, 8 Jul 2024 15:05:07 GMT
Title: Dissipative Dynamics in Open Fermionic Chains
Authors: A. I. Karanikas, G. E. Pavlou,
Abstract summary: We construct the reduced generating functional through which all the time-dependent correlation functions of an open fermionic system can be directly derived. As a concrete example, we investigate the transverse Ising model.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: By merging the Feynman-Vernon's approach with the out-of-equilibrium Keldysh-Schwinger formalism, we construct the reduced generating functional through which all the time-dependent correlation functions of an open fermionic system can be directly derived by applying the appropriate functional derivatives. As a concrete example, we investigate the transverse Ising model, we derive the covariance matrix at the steady state of the system and we investigate its critical behavior.

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