SLIDE 21 2D random-singlet phase
JQ model with random J or Q
Lu Liu, Hui Shao, YCL, Wenan Guo, Anders Sandvik, PRX 8, 041040 (2018)
i j
Jx
i j
Jy
i j k l m n
Qx
i j k l m n
Qy
2D random-singlet phase
8 12 16 24 32 48 10
10
10
Cs(L/2,L/2) J/Q=0 Q/J=4 Q/J=2 12 8 16 24 32 48 L 10
10
10
10
Cd(L/2,L/2) J/Q=0 (a) (b)
C(L) ∼ 1/L2
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D(L) ∼ 1/L4
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Lu Liu, Hui Shao, YCL, Wenan Guo, Anders Sandvik, PRX 8, 041040 (2018)