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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Communication: Explicitly correlated four-component relativistic second-order Møller-Plesset perturbation theory
Seiichiro Ten-no1, Daisuke Yamaki
1Graduate School of System Informatics, Department of Computational Sciences, Kobe University, Nada-ku, Kobe 657-8501, Japan. tenno@cs.kobe-u.ac.jp
Abstract:
We propose explicitly correlated Ansatz for four-component relativistic methods within the framework of the no-pair approximation. Kinetically balanced geminal basis is derived to satisfy the cusp conditions in the non-relativistic limit based on the Lévy-Leblend-like equation. Relativistic variants of strong-orthogonality projection operator (Ansätze 2α and 2β) suitable for practical calculations are introduced by exploiting the orthogonal complement of the large-component basis. A pilot implementation is performed for the second order Møller-Plesset perturbation theory.
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