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cond-mat.str-el2020
Exact Self-Consistent Effective Hamiltonian Theory
Xindong Wang, Xiao Chen, Liqin Ke +2
We propose a general variational fermionic many-body wavefunction that generates an effective Hamiltonian in a quadratic form, which can then be exactly solved. The theory can be c…
cond-mat.str-el2020
Mathematical Theory of Locally Coherent Quantum Many-Body Fermionic System
Xindong Wang
Recently Wang and Cheng proposed a self-consistent effective Hamiltonian theory (SCEHT) for many-body fermionic systems (Wang & Cheng, 2019). This paper attempts to provide a mathe…
cond-mat.str-el2019★ 1 cited
Self-Consistent Effective Hamiltonian Theory for Fermionic Many Body Systems
Xindong Wang, Hai-Ping Cheng
Using a separable many-body variational wavefunction, we formulate a self-consistent effective Hamiltonian theory for fermionic many-body system. The theory is applied to the two-d…