0.15 0.2 0.25
Position of the left singularity [ ω D ] DMRG
AA
λ = 0.4
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0 0.1 0.2 0.3 0.4
ω [ω D ]
0.5 1 1.5
ν (ω) / ν 0
N B = 4, N = 20 N B = 6, N = 40 N B = 8, N = 60 N B = 10, N = 80
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-4 -2 0 2 4
ε i [d]
0.4 0.5 0.6 0.7 0.8 0.9 1
matrix element
N B = 4, N = 20 N B = 6, N = 40 N B = 8, N = 60 N B = 10, N = 80
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0 0.5 1 1.5 2 ω [ ω D ]
0 0.5 1 1.5 2
ν(ω) / ν 0
N B = 94 N B = 14 λ = 0.4, N = 100
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N B
0 0.5 1 1.5
position of the lower peak (lower singularity)
DMRG AA λ = 0.4, N = 100
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