TY - JOUR
T1 - Spinon gas description of the S=1/2 Heisenberg chain with inverse-square exchange
T2 - Exact spectrum and thermodynamics
AU - Haldane, Frederick D.
PY - 1991/1/1
Y1 - 1991/1/1
N2 - The exact spectrum and thermodynamics of the S=1/2 Heisenberg chain with inverse-square exchange are explicitly obtained in closed form, and a description in terms of semionic spin-1/2 spinon excitations is developed. The unexpected degeneracies of the spectrum lead to a new representation of the k=1 SU(2) Wess-Zumino-Witten conformal field theory that exposes an infinite set of SU(2) symmetries of that model.
AB - The exact spectrum and thermodynamics of the S=1/2 Heisenberg chain with inverse-square exchange are explicitly obtained in closed form, and a description in terms of semionic spin-1/2 spinon excitations is developed. The unexpected degeneracies of the spectrum lead to a new representation of the k=1 SU(2) Wess-Zumino-Witten conformal field theory that exposes an infinite set of SU(2) symmetries of that model.
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U2 - 10.1103/PhysRevLett.66.1529
DO - 10.1103/PhysRevLett.66.1529
M3 - Article
C2 - 10043232
AN - SCOPUS:0001266932
SN - 0031-9007
VL - 66
SP - 1529
EP - 1532
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
ER -