Title: Metropolis-style random sampling of quantum gates for the estimation of low-energy observables

Journal Article · · Physical Review. D.

In this work, we propose a quantum algorithm to compute low-energy expectation values of a quantum Hamiltonian by sampling a partition function associated with the average energy of that Hamiltonian. For any given quantum circuit-Hamiltonian pair, there is an associated average energy. The sampling is done through an accept/reject Metropolis-style algorithm on the quantum gates of the circuit itself. Observables calculated under the canonical ensemble from these samples of circuits are extrapolated from higher energies to the ground state.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1834199
Report Number(s):
FERMILAB-PUB-21-655-QIS-T; arXiv:2111.14676; oai:inspirehep.net:1978868
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 3 Vol. 105; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (26)

Benchmarking Quantum Chemistry Computations with Variational, Imaginary Time Evolution, and Krylov Space Solver Algorithms journal May 2021
A new algorithm for Monte Carlo simulation of Ising spin systems journal January 1975
Hybrid Monte Carlo journal September 1987
Projected cooling algorithm for quantum computation journal August 2020
Quantum Fields on a Lattice book January 2009
Quantum Metropolis sampling journal March 2011
A variational eigenvalue solver on a photonic quantum processor journal July 2014
Determining eigenstates and thermal states on a quantum computer using quantum imaginary time evolution journal November 2019
Quantum algorithm for preparing the ground state of a system via resonance transition journal November 2017
Variational quantum algorithms journal August 2021
Equation of State Calculations by Fast Computing Machines journal June 1953
Faster ground state preparation and high-precision ground energy estimation with fewer qubits journal February 2019
A quantum-quantum Metropolis algorithm journal January 2012
Perspectives of quantum annealing: methods and implementations journal May 2020
Scattering in the Ising model with the quantum Lanczos algorithm * journal April 2021
Notes on bias in Estimation journal January 1956
Projective cooling for the transverse Ising model journal April 2020
Quantum annealing in the transverse Ising model journal November 1998
Preparing Ground States of Quantum Many-Body Systems on a Quantum Computer journal April 2009
Nonuniversal critical dynamics in Monte Carlo simulations journal January 1987
Collective Monte Carlo Updating for Spin Systems journal January 1989
Worm Algorithms for Classical Statistical Models journal September 2001
A Quantum Adiabatic Evolution Algorithm Applied to Random Instances of an NP-Complete Problem journal April 2001
Optimization by Simulated Annealing journal May 1983
Near-optimal ground state preparation journal December 2020
Der Massbegriff in der Theorie der Kontinuierlichen Gruppen journal January 1933