Topological recursion and uncoupled BPS structures I: BPS spectrum and free energies
Topological recursion and uncoupled BPS structures I: BPS spectrum and free energies
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拓扑递归和非耦合 BPS 结构 I:BPS 谱和自由能
DOI:
10.1016/j.aim.2022.108191
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发表时间:
2022
影响因子:
1.7
通讯作者:
Kidwai Omar
中科院分区:
文献类型:
--
作者:
Iwaki Kohei;Kidwai Omar
For the hypergeometric spectral curve and its confluent degenerations (spectral curves of “hypergeometric type”), we obtain a simple formula expressing the topological recursion free energies as a sum over BPS states (degenerate spectral networks) for a corresponding quadratic differentialφ. In doing so, we generalize Gaiotto-Moore-Neitzke's construction of BPS structures to include the case whereφhas simple poles or supports a degenerate ring domain. For the nine spectral curves of hypergeometric type, we provide a complete description of the corresponding BPS structures over a generic locus in the relevant parameter space; in particular, we prove the existence of saddles trajectories at the expected parameter values. We determine the corresponding BPS cycles, central charges, and BPS invariants, and verify our formula in each case. We conjecture that a similar relation should hold more generally whenever the corresponding BPS structure is uncoupled, and provide experimental evidence in two simple higher rank examples.
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