When do perturbative approaches accurately capture the dynamics of complex quantum systems?
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ABSTRACT:
SUBMITTER: Fruchtman A
PROVIDER: S-EPMC4917862 | biostudies-literature | 2016 Jun
REPOSITORIES: biostudies-literature
Publications
When do perturbative approaches accurately capture the dynamics of complex quantum systems?
Fruchtman Amir A Lambert Neill N Gauger Erik M EM
Scientific reports 20160623
Understanding the dynamics of higher-dimensional quantum systems embedded in a complex environment remains a significant theoretical challenge. While several approaches yielding numerically converged solutions exist, these are computationally expensive and often provide only limited physical insight. Here we address the question: when do more intuitive and simpler-to-compute second-order perturbative approaches provide adequate accuracy? We develop a simple analytical criterion and verify its va ...[more]
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