270 citations · 1.8k across the 33 of their papers we have counts for
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Pairing fluctuations and pseudogaps in the attractive Hubbard model
B. Kyung, S. Allen, A. -M. S. Tremblay
The two-dimensional attractive Hubbard model is studied in the weak to intermediate coupling regime by employing a non-perturbative approach. It is first shown that this approach i…
Conjectures for the microscopic theory of high temperature superconductivity
Bumsoo Kyung
Based on experimental results and our previous theoretical work, a microscopic theory of high temperature superconductivity is conjectured. In this conjecture, superconducting and…
New interpretation of slave boson mean-field theory of the model: short-range antiferromagnetic and d-wave pairing correlations
Bumsoo Kyung
The Hamiltonian is studied in a mean-field approximation by taking into account antiferromagnetic and d-wave pairing correlations. Considering the presence of antiferromagnet…
Short-range spin correlations and induced local spin-singlet amplitude in the Hubbard model
Bumsoo Kyung
In this paper, from the microscopic Hubbard Hamiltonian we extract the local spin-singlet amplitude due to short-range spin correlations, and quantify its strength near half-fillin…
Mean-field study of the interplay between antiferromagnetism and d-wave superconductivity
Bumsoo Kyung
The interplay between antiferromagnetism and d-wave superconductivity is studied in a mean-field approximation for a generic microscopic Hamiltonian with short-range repulsion and…
Spectral properties and pseudogaps in a model with d-wave pairing symmetry
Bumsoo Kyung
A model with d-wave pairing symmetry is studied by employing a non-perturbative sum rule approach. At low temperature the magnitude of a normal state pseudogap shows strong $\vec{k…