TY - JOUR
T1 - New order parameter and numerical techniques for the ground-state Mott transition in infinite dimensions
AU - Nishiyama, Yoshihiro
AU - Suzuki, Masuo
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1997/1
Y1 - 1997/1
N2 - The ground-state Mott transition of the Hubbard model on the Bethe lattice with an infinite coordination number is investigated. The system is mapped to a numerically tractable finite model according to the proposal by Si et al. The intersection points of curves of our new order parameter with a varying mapping precision are found to yield a systematic estimate of the Mott transition point. The meaning of the order parameter is investigated. The White method is applied in order to examine very large mapped systems approximately. Transition properties are discussed in detail.
AB - The ground-state Mott transition of the Hubbard model on the Bethe lattice with an infinite coordination number is investigated. The system is mapped to a numerically tractable finite model according to the proposal by Si et al. The intersection points of curves of our new order parameter with a varying mapping precision are found to yield a systematic estimate of the Mott transition point. The meaning of the order parameter is investigated. The White method is applied in order to examine very large mapped systems approximately. Transition properties are discussed in detail.
KW - Exact diagonalization
KW - Infinite-dimensional electron system
KW - Mott transition
KW - Numerical real-space renormalization
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U2 - 10.1016/S0921-4526(97)84160-9
DO - 10.1016/S0921-4526(97)84160-9
M3 - Article
AN - SCOPUS:0030837195
SN - 0921-4526
VL - 229
SP - 133
EP - 145
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 2
ER -