Abstract
The relativistic three-particle systems are studied within the framework of Relativistic Schrödinger Theory (RST), with emphasis on the determination of the energy functional for the stationary bound states. The phenomenon of entanglement shows up here in form of the exchange energy which is a significant part of the relativistic field energy. The electromagnetic interactions become unified with the exchange interactions into a relativistic U(N) gauge theory, which has the Hartree–Fock equations as its non-relativistic limit. This yields a general framework for treating entangled states of relativistic many-particle systems, e.g., the N-electron atoms.
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Schust, P., Mattes, M. & Sorg, M. Quantum Entanglement in Relativistic Three-Particle Systems. Foundations of Physics 34, 99–167 (2004). https://doi.org/10.1023/B:FOOP.0000012011.48629.5a
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DOI: https://doi.org/10.1023/B:FOOP.0000012011.48629.5a