Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Error-mitigated photonic variational quantum eigensolver using a
  single-photon ququart   We report the experimental resource-efficient implementation of the
variational quantum eigensolver (VQE) using four-dimensional photonic quantum
states of single-photons. The four-dimensional quantum states are implemented
by utilizing polarization and path degrees of freedom of a single-photon. Our
photonic VQE is equipped with the quantum error mitigation (QEM) protocol that
efficiently reduces the effects of Pauli noise in the quantum processing unit.
We apply our photonic VQE to estimate the ground state energy of He--H$^{+}$
cation. The simulation and experimental results demonstrate that our
resource-efficient photonic VQE can accurately estimate the bond dissociation
curve, even in the presence of large noise in the quantum processing unit.

12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat