125,240 research outputs found
Conformal Bootstrap in the Regge Limit
We analytically solve the conformal bootstrap equations in the Regge limit
for large N conformal field theories. For theories with a parametrically large
gap, the amplitude is dominated by spin-2 exchanges and we show how the
crossing equations naturally lead to the construction of AdS exchange Witten
diagrams. We also show how this is encoded in the anomalous dimensions of
double-trace operators of large spin and large twist. We use the chaos bound to
prove that the anomalous dimensions are negative. Extending these results to
correlators containing two scalars and two conserved currents, we show how to
reproduce the CEMZ constraint that the three-point function between two
currents and one stress tensor only contains the structure given by
Einstein-Maxwell theory in AdS, up to small corrections. Finally, we consider
the case where operators of unbounded spin contribute to the Regge amplitude,
whose net effect is captured by summing the leading Regge trajectory. We
compute the resulting anomalous dimensions and corrections to OPE coefficients
in the crossed channel and use the chaos bound to show that both are negative.Comment: 40 pages, 1 figure; V2: Small corrections and clarification
Line bundles on rigid varieties and Hodge symmetry
We prove several related results on the low-degree Hodge numbers of proper
smooth rigid analytic varieties over non-archimedean fields. Our arguments rely
on known structure theorems for the relevant Picard varieties, together with
recent advances in p-adic Hodge theory. We also define a rigid analytic
Albanese naturally associated with any smooth proper rigid space.Comment: 9 pages, comments welcom
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