TY - JOUR
T1 - Universality class of an (formula presented) quantum spin ladder system with four-spin exchange
AU - Hijii, Keigo
AU - Nomura, Kiyohide
PY - 2002/1/1
Y1 - 2002/1/1
N2 - We study a (formula presented) Heisenberg spin ladder with four-spin exchange. Combining numerical results with conformal field theory, we find a phase transition with central charge (formula presented) Since this system has an SU(2) symmetry, we can conclude that this critical theory is described by (formula presented) SU(2) Wess-Zumino-Witten model with (formula presented) symmetry breaking.
AB - We study a (formula presented) Heisenberg spin ladder with four-spin exchange. Combining numerical results with conformal field theory, we find a phase transition with central charge (formula presented) Since this system has an SU(2) symmetry, we can conclude that this critical theory is described by (formula presented) SU(2) Wess-Zumino-Witten model with (formula presented) symmetry breaking.
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U2 - 10.1103/PhysRevB.65.104413
DO - 10.1103/PhysRevB.65.104413
M3 - Article
AN - SCOPUS:85038313247
VL - 65
SP - 1
EP - 6
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 10
ER -