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arXiv · 1806.06649

Simulation of Nonequilibrium Dynamics on a Quantum Computer

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.

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Henry Lamm, Scott Lawrence. 2018-06-18. Simulation of Nonequilibrium Dynamics on a Quantum Computer. https://doi.org/10.1103/physrevlett.121.170501

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