67 citations · 343 across the 16 of their papers we have counts for
16 papers
Renormalization of transition matrix elements of particle number operators due to strong electron correlation
Noboru Fukushima
Renormalization of non-magnetic and magnetic impurities due to electron double occupancy prohibition is derived analytically by an improved Gutzwiller approximation. Non-magnetic i…
Impurity Scattering Effects in STM Studies of High-T_c Superconductors
Noboru Fukushima, Chung-Pin Chou, Ting Kuo Lee
Recent STM measurements have observed many inhomogeneous patterns of the local density of states on the surface of high-T_c cuprates. As a first step to study such disordered stron…
Impurity Potential Renormalization by Strong Electron Correlation
Noboru Fukushima, Chung-Pin Chou, Ting Kuo Lee
Renormalization of non-magnetic impurity potential by strong electron correlation is investigated in detail. We adopt the t-t'-t"-J model and consider mainly a delta-function impur…
The cluster glass state in the two-dimensional extended t-J model
Chung-Pin Chou, Noboru Fukushima, Ting Kuo Lee
The recent observation of an electronic cluster glass state composed of random domains with unidirectional modulation of charge density and/or spin density on Bi_{2}Sr_{2}CaCu_{2}O…
Grand canonical Gutzwiller approximation for magnetic inhomogeneous systems
Noboru Fukushima
The Gutzwiller approximation (GA) for Gutzwiller-projected grand canonical wave functions with fugacity factors is investigated in detail. Our systems in general contain inhomogene…
Particle number renormalization in almost half filled Mott Hubbard superconductors
Bernhard Edegger, Noboru Fukushima, Claudius Gros +1
The effects of the Gutzwiller projection on a BCS wave function with varying particle number are considered. We show that a fugacity factor has to be introduced in these wave funct…