Metropolis-style random sampling of quantum gates for the estimation of low-energy observables
Journal Article
·
· Physical Review. D.
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
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
Similar Records
Distribution of interference in random quantum algorithms
Microcanonical Effective Partition Function for the Anharmonic Oscillator
Controlled gate networks: theory and application to eigenvalue estimation
Journal Article
·
2007
· Physical Review. A
·
OSTI ID:20991099
Microcanonical Effective Partition Function for the Anharmonic Oscillator
Journal Article
·
2010
· arXiv.org Repository
·
OSTI ID:1769097
Controlled gate networks: theory and application to eigenvalue estimation
Journal Article
·
2025
· European Physical Journal. A, Hadrons and Nuclei (Online)
·
OSTI ID:3006234
+5 more