Abstract
We prove a recent conjecture that the partition function of \( \mathcal{N} \) = (2, 2) gauge theories on the two-sphere which flow to Calabi-Yau sigma models in the infrared computes the exact Kähler potential on the quantum Kähler moduli space of the corresponding Calabi-Yau. This establishes the two-sphere partition function as a new method of computation of worldsheet instantons and Gromov-Witten invariants. We also calculate the exact two-sphere partition function for \( \mathcal{N} \) = (2, 2) Landau-Ginzburg models with an arbitrary twisted superpotential W . These results are used to demonstrate that arbitrary abelian gauge theories and their associated mirror Landau-Ginzburg models have identical two-sphere partition functions. We further show that the partition function of non-abelian gauge theories can be rewritten as the partition function of mirror Landau-Ginzburg models.
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ArXiv ePrint: 1210.6022
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Gomis, J., Lee, S. Exact Kähler potential from gauge theory and mirror symmetry. J. High Energ. Phys. 2013, 19 (2013). https://doi.org/10.1007/JHEP04(2013)019
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DOI: https://doi.org/10.1007/JHEP04(2013)019