Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Quantum chemistry as a benchmark for near-term quantum computers

Journal Article · · npj Quantum Information
We present a quantum chemistry benchmark for noisy intermediate-scale quantum computers that leverages the variational quantum eigensolver, active-space reduction, a reduced unitary coupled cluster ansatz, and reduced density purification as error mitigation. We demonstrate this benchmark using 4 of the available qubits on the 20-qubit IBM Tokyo and 16-qubit Rigetti Aspen processors via the simulation of alkali metal hydrides (NaH, KH, RbH), with accuracy of the computed ground state energy serving as the primary benchmark metric. We further parameterize this benchmark suite on the trial circuit type, the level of symmetry reduction, and error mitigation strategies. Our results demonstrate the characteristically high noise level present in near-term superconducting hardware, but provide a relevant baseline for future improvement of the underlying hardware, and a means for comparison across near-term hardware types. We also demonstrate how to reduce the noise in post processing with specific error mitigation techniques. Particularly, the adaptation of McWeeny purification of noisy density matrices dramatically improves accuracy of quantum computations, which, along with adjustable active space, significantly extends the range of accessible molecular systems. We demonstrate that for specific benchmark settings and a selected range of problems, the accuracy metric can reach chemical accuracy when computing over the cloud on certain quantum computers.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1658010
Journal Information:
npj Quantum Information, Journal Name: npj Quantum Information Journal Issue: 1 Vol. 5; ISSN 2056-6387
Publisher:
Nature Partner JournalsCopyright Statement
Country of Publication:
United States
Language:
English

References (29)

New perspectives on unitary coupled-cluster theory journal January 2006
Fermionic Quantum Computation journal May 2002
Bootstrap Methods: Another Look at the Jackknife book January 1992
�ber das Paulische �quivalenzverbot journal September 1928
A language and hardware independent approach to quantum–classical computing journal January 2018
Direct search algorithms for optimization calculations journal January 1998
Qubit Coupled Cluster Method: A Systematic Approach to Quantum Chemistry on a Quantum Computer journal November 2018
Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets journal September 2017
A variational eigenvalue solver on a photonic quantum processor journal July 2014
Barren plateaus in quantum neural network training landscapes journal November 2018
Characterizing quantum supremacy in near-term devices journal April 2018
The Bravyi-Kitaev transformation for quantum computation of electronic structure journal December 2012
Communication: Generalized canonical purification for density matrix minimization journal March 2016
Experimental comparison of two quantum computing architectures journal March 2017
Application of fermionic marginal constraints to hybrid quantum algorithms journal May 2018
Strategies for quantum computing molecular energies using the unitary coupled cluster ansatz journal October 2018
Quantum implementation of the unitary coupled cluster for simulating molecular electronic structure journal February 2017
Quantum-classical computation of Schwinger model dynamics using quantum computers journal September 2018
Low-cost error mitigation by symmetry verification journal December 2018
Digitization of scalar fields for quantum computing journal May 2019
Generative model benchmarks for superconducting qubits journal June 2019
Error Mitigation for Short-Depth Quantum Circuits journal November 2017
Cloud Quantum Computing of an Atomic Nucleus journal May 2018
Simulated Quantum Computation of Molecular Energies journal September 2005
Bootstrap Methods: Another Look at the Jackknife journal January 1979
Characterizing Quantum Supremacy in Near-Term Devices text January 2016
Strategies for quantum computing molecular energies using the unitary coupled cluster ansatz preprint January 2017
Cloud Quantum Computing of an Atomic Nucleus text January 2018
Quantum-Classical Computation of Schwinger Model Dynamics using Quantum Computers text January 2018

Cited By (9)

Hybrid quantum variational algorithm for simulating open quantum systems with near-term devices journal September 2020
A quantum-classical cloud platform optimized for variational hybrid algorithms journal March 2020
Application of the Diamond Gate in Quantum Fourier Transformations and Quantum Machine Learning journal February 2022
Gutzwiller hybrid quantum-classical computing approach for correlated materials journal February 2021
Benchmarking Quantum State Transfer on Quantum Devices using Spatio-Temporal Steering text January 2020
How will quantum computers provide an industrially relevant computational advantage in quantum chemistry? preprint January 2020
Improved accuracy on noisy devices by non-unitary Variational Quantum Eigensolver for chemistry applications preprint January 2021
Quantum computing hardware in the cloud: Should a computational chemist care? text January 2021
Efficient symmetry-preserving state preparation circuits for the variational quantum eigensolver algorithm journal January 2020

Similar Records

Quantum subspace expansion in the presence of hardware noise
Journal Article · Mon Sep 23 00:00:00 EDT 2024 · APL Quantum · OSTI ID:2561471