32 citations · 56 across the 5 of their papers we have counts for
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cond-mat.str-el2003★ 32 cited
Precise Determination of Phase Diagram for Two-Dimensional Hubbard Model with Filling- and Bandwidth-Control Mott Transitions: Grand-Canonical Path-Integral Renormalization Group Approach
Shinji Watanabe, Masatoshi Imada
A new numerical algorithm for interacting fermion systems to treat the grand-canonical ensemble is proposed and examined by extending the path-integral renormalization group method…
cond-mat.mtrl-sci2003
29Si Nuclear-Spin Decoherence Process Directly Observed by Multiple Spin-Echoes for Pure and Carrier-less Silicon
Shinji Watanabe, Susumu Sasaki
We report on the 29Si nuclear spin decoherence time at room temperature for a pure (99.99999%, 7N) and carrier-less (p-type, doping level of 10^15cm-3) silicon in which 29Si nuclei…
cond-mat.str-el2003
New Type of Degenerate Quantum Spin Phase
Masatoshi Imada, Takahiro Mizusaki, Shinji Watanabe
Correlated electrons often crystalize to the Mott insulator usually with some magnetic orders, whereas the "quantum spin liquid" has been a long-sought issue. We report numerical e…