Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The transfer matrix in four-dimensional CDT   The Causal Dynamical Triangulation model of quantum gravity (CDT) has a
transfer matrix, relating spatial geometries at adjacent (discrete lattice)
times. The transfer matrix uniquely determines the theory. We show that the
measurements of the scale factor of the (CDT) universe are well described by an
effective transfer matrix where the matrix elements are labeled only by the
scale factor. Using computer simulations we determine the effective transfer
matrix elements and show how they relate to an effective minisuperspace action
at all scales.

1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess