Adaptive time-dependent coupled cluster method for multiparticle wavepacket dynamics
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Publication:6220337
arXiv1008.3835MaRDI QIDQ6220337
Author name not available (Why is that?)
Publication date: 23 August 2010
Abstract: A dynamical formulation of coupled cluster theory is derived using a variational principle. By allowing time-dependent single-particle functions, a high degree of adaptivity is introduced, allowing complex systems to be simulated with high accuracy. Equations of motion are derived which are shown to be suitable for computer implementation. The method, called adaptive time-dependent coupled cluster, is a strict generalization of the formulation used in standard coupled cluster response theory, and also represents a systematic hierarchy of size-consistent approximations, including standard time-dependent Hartree--Fock as a trivial case.
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