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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