scholarly journals Short-range resonating-valence-bond state of even-spin ladders: A recurrent variational approach

1997 ◽  
Vol 56 (14) ◽  
pp. 8774-8785 ◽  
Author(s):  
Germán Sierra ◽  
Miguel A. Martín-Delgado
1989 ◽  
Vol 40 (10) ◽  
pp. 7343-7344 ◽  
Author(s):  
S. A. Kivelson ◽  
D. S. Rokhsar ◽  
J. P. Sethna ◽  
J. D. Shore

2020 ◽  
Vol 125 (7) ◽  
Author(s):  
Piers Coleman ◽  
Yashar Komijani ◽  
Elio J. König

1989 ◽  
Vol 03 (12) ◽  
pp. 925-931 ◽  
Author(s):  
YONATHAN SHAPIR ◽  
THOMAS BLUM

A systematic representation of the resonating-valence-bond state of the 2D spin-1/2 Heisenberg antiferromagnet in terms of anticommuting Grassmann variables is derived. This representation is extended to the dilute case and the holon statistics are considered. Independent phase fluctuations on each valence-bond yield a U(1) gauge theory with low-lying gapless excitations in accordance with other approaches.


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