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Quantum Simulation
Metropolis-style random sampling of quantum gates for the estimation of low-energy observables
arXiv
Authors: Judah F. Unmuth-Yockey
Year
2021
Paper ID
41180
Status
Preprint
Abstract Read
~2 min
Abstract Words
76
Citations
N/A
Abstract
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.
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- 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...
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