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arXiv 1507.08894hep-th
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整体对称瞬子模空间上的信息度量

The Information Metric on the moduli space of instantons with global symmetries

Emanuel Malek, Jeff Murugan, Jonathan P Shock

摘要:

在本说明中,我们重新希钦的处方\cite{Hitchin}的费舍尔度量作为一个自然的措施上的模空间的瞬子编码的时空对称性的经典场论。受超对称瞬子的模空间作为规范/引力对偶意义上的突现空间的思想的启发,我们将处方扩展到编码基础理论的全局对称性。我们用$\mathbb{R}^{2}$上的$\mathbb{CP}^{N}$西格玛模型的瞬子解来证明我们的构造。

英文摘要:

In this note we revisit Hitchin's prescription \cite{Hitchin} of the Fisher metric as a natural measure on the moduli space of instantons that encodes the space-time symmetries of a classical field theory. Motivated by the idea of the moduli space of supersymmetric instantons as an emergent space in the sense of the gauge/gravity duality, we extend the prescription to encode also global symmetries of the underlying theory. We exemplify our construction with the instanton solution of the $\mathbb{CP}^{N}$ sigma model on $\mathbb{R}^{2}$.

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