Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Efficient Representation for Simulating U(1) Gauge Theories on Digital
  Quantum Computers at All Values of the Coupling   We derive a representation for a lattice U(1) gauge theory with exponential
convergence in the number of states used to represent each lattice site that is
applicable at all values of the coupling. At large coupling, this
representation is equivalent to the Kogut-Susskind electric representation,
which is known to provide a good description in this region. At small coupling,
our approach adjusts the maximum magnetic field that is represented in the
digitization as in this regime the low-lying eigenstates become strongly peaked
around zero magnetic field. Additionally, we choose a representation of the
electric component of the Hamiltonian that gives minimal violation of the
canonical commutation relation when acting upon low-lying eigenstates,
motivated by the Nyquist-Shannon sampling theorem. For (2+1) dimensions with 4
lattice sites the expectation value of the plaquette operator can be calculated
with only 7 states per lattice site with per-mille level accuracy for all
values of the coupling constant.

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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: eess
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
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The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph