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arXiv · 2402.15454

Process tensor approaches to modeling two-dimensional spectroscopy

Roosmarijn de Wit·Jonathan Keeling·Brendon W. Lovett·Alex W. Chin
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Abstract

Problems in the field of open quantum systems often involve an environment that strongly influences the dynamics of excited states. Here we present a numerical method to model optical spectra of non-Markovian open quantum systems. The method employs a process tensor framework to efficiently compute multi-time correlations in a numerically exact way. To demonstrate the efficacy of our method, we compare 2D electronic spectroscopy simulations produced through our method to Markovian master equation simulations in three different system-bath coupling regimes.

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Roosmarijn de Wit, Jonathan Keeling, Brendon W. Lovett, Alex W. Chin. 2024-02-23. Process tensor approaches to modeling two-dimensional spectroscopy. https://doi.org/10.1103/physrevresearch.7.013209

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