TY - JOUR
T1 - Systematic derivation of order parameters through reduced density matrices
AU - Furukawa, Shunsuke
AU - Misguich, Grégoire
AU - Oshikawa, Masaki
PY - 2006
Y1 - 2006
N2 - A systematic method for determining order parameters for quantum many-body systems on lattices is developed by utilizing reduced density matrices. This method allows one to extract the order parameter directly from the wave functions of the degenerate ground states without the aid of empirical knowledge, and thus opens a way to explore unknown exotic orders. The applicability of this method is demonstrated numerically or rigorously in models that are considered to exhibit dimer, scalar chiral, and topological orders.
AB - A systematic method for determining order parameters for quantum many-body systems on lattices is developed by utilizing reduced density matrices. This method allows one to extract the order parameter directly from the wave functions of the degenerate ground states without the aid of empirical knowledge, and thus opens a way to explore unknown exotic orders. The applicability of this method is demonstrated numerically or rigorously in models that are considered to exhibit dimer, scalar chiral, and topological orders.
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U2 - 10.1103/PhysRevLett.96.047211
DO - 10.1103/PhysRevLett.96.047211
M3 - Article
AN - SCOPUS:33144466961
SN - 0031-9007
VL - 96
JO - Physical review letters
JF - Physical review letters
IS - 4
M1 - 047211
ER -