Search for: All records

A<sc>bstract</sc> For any unitary conformal field theory in two dimensions with the central chargec, we prove that, if there is a nontrivial primary operator whose conformal dimension ∆ vanishes in some limit on the conformal manifold, the Zamolodchikov distancetto the limit is infinite, the approach to this limit is exponential ∆ = exp(−αt+O(1)), and the decay rate obeys the universal boundsc^−1/2≤α≤ 1. In the limit, we also find that an infinite tower of primary operators emerges without a gap above the vacuum and that the conformal field theory becomes locally a tensor product of a sigma-model in the large radius limit and a compact theory. As a corollary, we establish a part of the Distance Conjecture about gravitational theories in three-dimensional anti-de Sitter space. In particular, our bounds onαindicate that the emergence of exponentially light states is inevitable as the moduli field corresponding totrolls beyond the Planck scale along the steepest path and that this phenomenon can begin already at the curvature scale of the bulk geometry. We also comment on implications of our bounds for gravity in asymptotically flat spacetime by taking the flat space limit and compare with the Sharpened Distance Conjecture.