Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density matrix renormalization group on a cylinder in mixed real and
  momentum space   We develop a variant of the density matrix renormalization group (DMRG)
algorithm for two-dimensional cylinders that uses a real space representation
along the cylinder and a momentum space representation in the perpendicular
direction. The mixed representation allows us to use the momentum around the
circumference as a conserved quantity in the DMRG algorithm. Compared with the
traditional purely real-space approach, we find a significant speedup in
computation time and a considerable reduction in memory usage. Applying the
method to the interacting fermionic Hofstadter model, we demonstrate a
reduction in computation time by over 20-fold, in addition to a sixfold memory
reduction.

14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas