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arXiv 1206.0887math.GT
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TQFT中曲线算子的渐近公式

Asymptotic formulas for curve operators in TQFT

Renaud Detcherry

摘要:

具有规范群$\textrm{SU}_2$的拓扑量子场论将每个带有标记点的表面$Σ$和每个整数$r>0$与矢量空间$V_r (Σ)$相关联,并将作用于该空间的厄米特算子$T_r^γ$与$Σ$中的每个简单闭合曲线$γ$相关联。我们证明了算子$T_r^γ$的矩阵元具有$\frac{1}{r}$阶的渐近展开式,并给出了用迹函数计算前两项的公式,推广了Marché和Paul的结果.

英文摘要:

Topological quantum field theories with gauge group $\textrm{SU}_2$ associate to each surface with marked points $Σ$ and each integer $r>0$ a vector space $V_r (Σ)$ and to each simple closed curve $γ$ in $Σ$ an Hermitian operator $T_r^γ$ acting on that space. We show that the matrix elements of the operators $T_r^γ$ have an asymptotic expansion in orders of $\frac{1}{r}$, and give a formula to compute the first two terms in terms of trace functions, generalizing results of Marché and Paul.

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