TY - JOUR
T1 - Variational Monte-Carlo Studies of Superconductivity in Strongly Correlated Electron Systems
AU - Yokoyama, Hisatoshi
AU - Shiba, Hiroyuki
PY - 1988
Y1 - 1988
N2 - A variational Monte-Carlo method is formulated to study superconductivity in strongly correlated electrons. An application is made to the strongly correlated Hubbard model on two-dimensional square lattice, by employing the simplest mean-field-type trial wave function, i.e. the Gutzwiller-projected BCS wave function. Among the various choices examined, the d-wave-type superconductivity turns out to be the most favorable. The nature of the superconducting order parameter and spin correlations is also examined.
AB - A variational Monte-Carlo method is formulated to study superconductivity in strongly correlated electrons. An application is made to the strongly correlated Hubbard model on two-dimensional square lattice, by employing the simplest mean-field-type trial wave function, i.e. the Gutzwiller-projected BCS wave function. Among the various choices examined, the d-wave-type superconductivity turns out to be the most favorable. The nature of the superconducting order parameter and spin correlations is also examined.
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U2 - 10.1143/JPSJ.57.2482
DO - 10.1143/JPSJ.57.2482
M3 - Article
AN - SCOPUS:2842611253
SN - 0031-9015
VL - 57
SP - 2482
EP - 2493
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 7
ER -