Stochastic simulation of long-time nonadiabatic dynamics

被引：10

作者：

Uken, Daniel A. ^{[1
]}

Sergi, Alessandro ^{[1
]}

Petruccione, Francesco ^{[2
,3
]}

机构：

[1] Univ KwaZulu Natal, Sch Phys, ZA-3209 Pietermaritzburg, South Africa

[2] Univ KwaZulu Natal, Sch Phys, ZA-4000 Durban, South Africa

[3] Univ KwaZulu Natal, Natl Inst Theoret Phys, ZA-4000 Durban, South Africa

来源：

PHYSICA SCRIPTA | 2011年 / T143卷

关键词：

QUANTUM-CLASSICAL DYNAMICS; SPIN-POLARIZED PLASMA; STATISTICAL-MECHANICS; LIOUVILLE DYNAMICS; MOLECULAR-DYNAMICS; SYSTEMS;

D O I：

10.1088/0031-8949/2011/T143/014024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：6

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