Bootstrapping the O(N ) vector models

Bootstrapping the O(N ) vector models
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自举 O(N ) 向量模型

DOI:
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发表时间:
2013
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通讯作者:
D. Simmons
D. Simmons
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文献类型:
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作者:
F. Kos;David Poland;D. Simmons

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我们研究了具有O(N)全局对称性的三维CFTs的共形引导。我们得到了出现在OPE中的第一个O(N)单态和对称张量算子的标度维数的严格上界,其中OPE是O(N)的一个基函数.将这些边界与之前在O(N)向量模型中确定的临界指数进行比较,我们发现了强有力的数值证据,证明O(N)向量模型在所有N值处都饱和了自举约束。我们还计算一般的中心电荷的下限,给出数值预测的值实现的O(N)矢量模型。我们将我们的预测与以前的1/N展开计算进行了比较,发现在N的大值时精确一致。
A bstractWe study the conformal bootstrap for 3D CFTs with O(N ) global symmetry. We obtain rigorous upper bounds on the scaling dimensions of the first O(N ) singlet and symmetric tensor operators appearing in the ϕi × ϕj OPE, where ϕi is a fundamental of O(N ). Comparing these bounds to previous determinations of critical exponents in the O(N ) vector models, we find strong numerical evidence that the O(N ) vector models saturate the bootstrap constraints at all values of N . We also compute general lower bounds on the central charge, giving numerical predictions for the values realized in the O(N ) vector models. We compare our predictions to previous computations in the 1/N expansion, finding precise agreement at large values of N .