3 papers
cond-mat.str-el2019
Critical role of the sign structure in the doped Mott insulator: Superconductivity vs. Fermi liquid
Hong-Chen Jiang, Shuai Chen, Zheng-Yu Weng
Mechanism of superconductivity (SC) in a purely interacting electron system has been one of the most challenging issues in condensed matter physics. In the BCS theory, the Landau's…
cond-mat.str-el2018
Single-hole wave function in two dimensions: A case study of the doped Mott insulator
Shuai Chen, Qing-Rui Wang, Yang Qi +2
We study a ground-state ansatz for the single-hole doped - model in two dimensions via a variational Monte Carlo (VMC) method. Such a single-hole wave function possesses fini…
cond-mat.str-el2018
Two-hole ground state wavefunction: Non-BCS pairing in a - two-leg ladder system
Shuai Chen, Zheng Zhu, Zheng-Yu Weng
Superconductivity is usually described in the framework of the Bardeen-Cooper-Schrieffer (BCS) wavefunction, which even includes the resonating-valence-bond (RVB) wavefunction prop…