研究目的
Investigating the implications of the exact momentum/force balance equation for cavity quantum electrodynamics on the electron self-energy and the exchange-correlation potential of the quantum electrodynamic time-dependent density functional theory (QED-TDDFT).
研究成果
The study concludes that the concept of (cid:2) derivability can be generalized to construct approximations which ensure the correct momentum balance in cavity quantum electrodynamics. It is shown that a recently proposed optimized effective potential approximation for QED-TDDFT is conserving, and its possible improvements are discussed.
研究不足
The study is theoretical and focuses on the implications of the exact momentum/force balance equation for cavity quantum electrodynamics. The practical application and experimental validation of the proposed approximations are not covered.
1：Experimental Design and Method Selection:
The study involves theoretical analysis and derivation of the exact momentum/force balance equation for cavity quantum electrodynamics. The methodology includes the use of many-body perturbation theory and time-dependent density functional theory.
2：Sample Selection and Data Sources:
The research is theoretical, focusing on nonrelativistic electrons strongly coupled to photon modes of a microcavity.
3：List of Experimental Equipment and Materials:
Not applicable as the study is theoretical.
4：Experimental Procedures and Operational Workflow:
The study involves deriving the exact momentum/force balance equation and analyzing its implications for QED-TDDFT.
5：Data Analysis Methods:
The analysis is based on theoretical derivations and implications for constructing conserving approximations in QED-TDDFT.
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