Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards a variational Jordan-Lee-Preskill quantum algorithm   Rapid developments of quantum information technology show promising
opportunities for simulating quantum field theory in near-term quantum devices.
In this work, we formulate the theory of (time-dependent) variational quantum
simulation, explicitly designed for quantum simulation of quantum field theory.
We develop hybrid quantum-classical algorithms for crucial ingredients in
particle scattering experiments, including encoding, state preparation, and
time evolution, with several numerical simulations to demonstrate our
algorithms in the 1+1 dimensional $\lambda \phi^4$ quantum field theory. These
algorithms could be understood as near-term analogs of the Jordan-Lee-Preskill
algorithm, the basic algorithm for simulating quantum field theory using
universal quantum devices. Our contribution also includes a bosonic version of
the Unitary Coupled Cluster ansatz with physical interpretation in quantum
field theory, a discussion about the subspace fidelity, a comparison among
different bases in the 1+1 dimensional $\lambda \phi^4$ theory, and the
"spectral crowding" in the quantum field theory simulation.

12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th