Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized quantum microcanonical ensemble from random matrix product
  states   We propose a tensor network algorithm for the efficient sampling of quantum
pure states belonging to a generalized microcanonical ensemble. The algorithm
consists in an adaptation of the power method to a recently introduced ensemble
of random matrix product states. The microcanonical ensemble that we consider
is characterized by the fact that the participating energy eigenstates are not
required to have identical statistical weight. To test the method we apply it
to the Heisenberg model with an external magnetic field, and we find that the
magnetization curves, due to the microcanonical constraint, are qualitatively
different from those obtained in the canonical ensemble. Possible future
applications include the study of isolated quantum systems evolving after a
quantum quench.

28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th