Simulation of Nonequilibrium Dynamics on a Quantum Computer

Henry Lamm; Scott Lawrence

doi:10.1103/PhysRevLett.121.170501

Simulation of Nonequilibrium Dynamics on a Quantum Computer

Quantum Physics 2018-10-31 v3 Strongly Correlated Electrons High Energy Physics - Lattice

Authors: Henry Lamm , Scott Lawrence

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Abstract

We present a hybrid quantum-classical algorithm for the time evolution of out-of-equilibrium thermal states. The method depends upon classically computing a sparse approximation to the density matrix, and then time-evolving each matrix element via the quantum computer. For this exploratory study, we investigate the time-dependent Heisenberg model with five spins on the Rigetti Forest quantum virtual machine and a one spin system on the Rigetti 8Q-Agave quantum processor.

Keywords

nonequilibrium quantum dynamics quantum computation

Cite

@article{arxiv.1806.06649,
  title  = {Simulation of Nonequilibrium Dynamics on a Quantum Computer},
  author = {Henry Lamm and Scott Lawrence},
  journal= {arXiv preprint arXiv:1806.06649},
  year   = {2018}
}

Comments

4 pages, 2 Figures, fixed typo

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