Using a generalized transition probability, we show how nonadiabatic calculations, within the Wigner–Heisenberg representation of quantum mechanics, can be reliably extended to far longer times than those allowed by a primitive sampling scheme. Tackling the spin-boson model as a paradigmatic example, we provide substantial numerical evidence that the statistical error can be reduced for a wide range of parameter values.
Stochastic Simulation of Nonadiabatic Dynamics at Long Time
SERGI, ALESSANDRO;
2011-01-01
Abstract
Using a generalized transition probability, we show how nonadiabatic calculations, within the Wigner–Heisenberg representation of quantum mechanics, can be reliably extended to far longer times than those allowed by a primitive sampling scheme. Tackling the spin-boson model as a paradigmatic example, we provide substantial numerical evidence that the statistical error can be reduced for a wide range of parameter values.File in questo prodotto:
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