Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disorder-Free Localization and Many-Body Quantum Scars from Magnetic
  Frustration   The concept of geometrical frustration has led to rich insights into
condensed matter physics, especially as a mechansim to produce exotic low
energy states of matter. Here we show that frustration provides a natural
vehicle to generate models exhibiting anomalous thermalization of various types
within high energy states. We consider three classes of non-integrable
frustrated spin models: (I) systems with local conserved quantities where the
number of symmetry sectors grows exponentially with the system size but more
slowly than the Hilbert space dimension, (II) systems with exact eigenstates
that are singlet coverings, and (III) flat band systems hosting magnon
crystals. We argue that several 1D and 2D models from class (I) exhibit
disorder-free localization in high energy states so that information
propagation is dynamically inhibited on length scales greater than a few
lattice spacings. We further show that models of class (II) and (III) exhibit
quantum many-body scars -- eigenstates of non-integrable Hamiltonians with
finite energy density and anomalously low entanglement entropy. Our results
demonstrate that magnetic frustration supplies a means to systematically
construct classes of non-integrable models exhibiting anomalous thermalization
in mid-spectrum states.

19
The categories of this paper are: eess
18
The categories of this paper are: econ
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
2
The categories of this paper are: math