Adding flavor to the Narain ensemble
Adding flavor to the Narain ensemble
复制标题
为 Narain 合奏增添风味
DOI:
10.1007/jhep05(2022)090
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发表时间:
2022
影响因子:
5.4
通讯作者:
Maloney, Alexander
中科院分区:
文献类型:
--
作者:
Datta, Shouvik;Duary, Sarthak;Kraus, Per;Maity, Pronobesh;Maloney, Alexander
We revisit the proposal that the ensemble average over free boson CFTs in two dimensions—parameterized by Narain’s moduli space—is dual to an exotic theory of gravity in three dimensions dubbed U (1) gravity. We consider flavored partition functions, where the usual genus g partition function is weighted by Wilson lines coupled to the conserved U (1) currents of these theories. These flavored partition functions obey a heat equation which relates deformations of the Riemann surface moduli to those of the chemical potentials which measure these U (1) charges. This allows us to derive a Siegel-Weil formula which computes the average of these flavored partition functions. The result takes the form of a “sum over geometries”, albeit with modifications relative to the unflavored case.
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DOI:
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发表时间:
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通讯作者:
C. Siegel
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