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Open Quantum Systems Decoherence
Quantum Foundations
Time-dependent Kohn-Sham approach to quantum electrodynamics
arXiv
Authors: M. Ruggenthaler, F. Mackenroth, D. Bauer
Year
2010
Paper ID
10361
Status
Preprint
Abstract Read
~2 min
Abstract Words
77
Citations
N/A
Abstract
We prove a generalization of the van Leeuwen theorem towards quantum electrodynamics, providing the formal foundations of a time-dependent Kohn-Sham construction for coupled quantized matter and electromagnetic fields. Thereby we circumvent the symmetry-causality problems associated with the action-functional approach to Kohn-Sham systems. We show that the effective external four-potential and four-current of the Kohn-Sham system are uniquely defined and that the effective four-current takes a very simple form. Further we rederive the Runge-Gross theorem for quantum electrodynamics.
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- We prove a generalization of the van Leeuwen theorem towards quantum electrodynamics, providing the formal foundations of a time-dependent Kohn-Sham construction for coupled...
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