109 citations · 334 across the 14 of their papers we have counts for
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More accurate and efficient bath spectral densities from super-resolution
Thomas Markovich, Samuel M. Blau, John Parkhill +4
Quantum transport and other phenomena are typically modeled by coupling the system of interest to an environment, or bath, held at thermal equilibrium. Realistic bath models are at…
Force-Field Functor Theory: Classical Force-Fields which Reproduce Equilibrium Quantum Distributions
Ryan Babbush, John Parkhill, Alán Aspuru-Guzik
Feynman and Hibbs were the first to variationally determine an effective potential whose associated classical canonical ensemble approximates the exact quantum partition function.…
Feynman's clock, a new variational principle, and parallel-in-time quantum dynamics
Jarrod R. McClean, John A. Parkhill, Alán Aspuru-Guzik
We introduce a new discrete-time variational principle inspired by the quantum clock originally proposed by Feynman, and use it to write down quantum evolution as a ground state ei…