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Note that contrary to the sine-Gordon formula 11, the logarithmically corrected dimerized chain energy 10 is lower than the plaquette energy 9 in the region δeff 0.4. However, formulas 10 9 are reliable only when δeff 1.
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Note that contrary to the sine-Gordon formula 11, the logarithmically corrected dimerized chain energy 10 is lower than the plaquette energy 9 in the region δeff 0.4. However, formulas 10 9 are reliable only when δeff 1.
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45749130357
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The other band E2s can be excluded from further considerations since it has a bigger nonvanishing gap.
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The other band E2s can be excluded from further considerations since it has a bigger nonvanishing gap.
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Using the formula for the NLσM topological term derived in Ref., we obtain the critical line located between two points: (δ= 18 35 =0.5142..., J=0) and (δ=1, J/J=1.9823...). So this approach does not result in adequate predictions.
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Using the formula for the NLσM topological term derived in Ref., we obtain the critical line located between two points: (δ= 18 35 =0.5142..., J=0) and (δ=1, J/J=1.9823...). So this approach does not result in adequate predictions.
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