Higher equations of motion at level 2 in Liouville CFT
arxiv(2023)
摘要
In a previous work, we investigated the analytic continuation of the bulk
Poisson operator of Liouville conformal field theory on the holomorphic part of
Fock space and used it to construct irreducible representations of the Virasoro
algebra at the degenerate values of the conformal weights. Here, we study two
cases where the Poisson operator admits some simple poles on the Kac table: the
bulk Poisson operator on the full Fock space (both holomorphic and
anti-holomorphic part), and the boundary Poisson operator on the Fock space. As
a consequence, the derivative of top singular vector does not vanish, and we
can identify it with a scalar multiple of a primary field of same conformal
weight. These are known as higher-equations of motions in physics and have been
studied in connection with minimal gravity.
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