Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vacuum Instability in Chern-Simons Theory, Null Vectors and
  Two-Dimensional Logarithmic Operators   A new relation between two-dimensional conformal field theories and
three-dimensional topologically massive gauge theories is found, where the
dynamical nature of the 3d theory is ultimately important.
  It is shown that the those primary states in CFT which have non-unitary
descendants correspond in the 3d theory to supercritical charges and cause
vacuum instability. It is also shown that logarithmic operators separating the
unitary sector from a non-unitary one correspond to an exact zero energy ground
state in which case the 3d Hamiltonian naturally has a Jordan structure.

26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc