Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scalable Quantum Simulation of Molecular Energies   We report the first electronic structure calculation performed on a quantum
computer without exponentially costly precompilation. We use a programmable
array of superconducting qubits to compute the energy surface of molecular
hydrogen using two distinct quantum algorithms. First, we experimentally
execute the unitary coupled cluster method using the variational quantum
eigensolver. Our efficient implementation predicts the correct dissociation
energy to within chemical accuracy of the numerically exact result. Second, we
experimentally demonstrate the canonical quantum algorithm for chemistry, which
consists of Trotterization and quantum phase estimation. We compare the
experimental performance of these approaches to show clear evidence that the
variational quantum eigensolver is robust to certain errors. This error
tolerance inspires hope that variational quantum simulations of classically
intractable molecules may be viable in the near future.

31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys