Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 11: Posters 2: Novelties in Molecular Physics
MO 11.23: Poster
Dienstag, 24. März 2015, 17:00–19:00, C/Foyer
Pure state vs. density matrix approaches for non-Markovian open quantum systems — •Pan-Pan Zhang1, Daniel Suess1, Walter T. Strunz2, and Alexander Eisfeld1 — 1MPIPKS Dresden — 2TU Dresden
To efficiently treat non-Markovian open quantum systems is a challenging task. One often used approach, denoted as HEOM [1], is using a hierarchy of coupled operator equations.
In this contribution we compare the recently developed hierarchy of pure states (HOPS) [2], which is a stochastic method, with the corresponding hierarchy of operators. We find in particular that in general HOPS requires much less numerical resources than HEOM.
[1] Y. Tanimura; J Phys Soc Japan 75 082001
[2] D. Suess et al; Phys. Rev. Lett. 113, 150403