Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Schwinger-Keldysh on the lattice: a faster algorithm and its application
  to field theory   A new algorithm is developed allowing the Monte Carlo study of a 1 + 1
dimensional theory in real time. The main algorithmic development is to avoid
the explicit calculation of the Jacobian matrix and its determinant in the
update process. This improvement has a wide applicability and reduces the cost
of the update in thimble-inspired calculations from O(N^3) to less than O(N^2).
As an additional feature, the algorithm leads to improved Monte Carlo
proposals. We exemplify the use of the algorithm to the real time dynamics of a
scalar {\phi}^4 theory with weak and strong couplings.

31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an