Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tangent-space methods for truncating uniform MPS   A central primitive in quantum tensor network simulations is the problem of
approximating a matrix product state with one of a lower bond dimension. This
problem forms the central bottleneck in algorithms for time evolution and for
contracting projected entangled pair states. We formulate a tangent-space based
variational algorithm to achieve this for uniform (infinite) matrix product
states. The algorithm exhibits a favourable scaling of the computational cost,
and we demonstrate its usefulness by several examples involving the
multiplication of a matrix product state with a matrix product operator.

31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th