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cond-mat.str-el2020★ 9 cited
Short-range charge fluctuations in the two-dimensional Hubbard model
Xinyang Dong, Emanuel Gull
We investigate charge fluctuations in the two-dimensional Hubbard model as a function of doping, interaction strength, next-nearest-neighbor hopping, and temperature within the eig…
cond-mat.str-el2020★ 33 cited
Legendre-spectral Dyson equation solver with super-exponential convergence
Xinyang Dong, Dominika Zgid, Emanuel Gull +1
Quantum many-body systems in thermal equilibrium can be described by the imaginary time Green's function formalism. However, the treatment of large molecular or solid ab inito prob…