We have implemented a unitary, numerically exact, Fourier split step method, based on a proper Suzuki-Trotter factorization of the quantum evolution operator, to propagate a two-body complex in arbitrary external potential landscapes taking into account exactly the internal structure. We have simulated spatially indirect Wannier-Mott excitons - optically excited electron-hole pairs with the two charges confined to different layers of a semiconductor heterostructure with prototypical 1D and 2D potentials emphasizing the effects of the internal dynamics and the insufficiency of mean-field methods in this context.

Two-body quantum propagation in arbitrary potentials / Grasselli, Federico; Bertoni, Andrea; Goldoni, Guido. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 738:1(2016), pp. 012028-012032. [10.1088/1742-6596/738/1/012028]

Two-body quantum propagation in arbitrary potentials

GRASSELLI, FEDERICO;BERTONI, Andrea;GOLDONI, Guido
2016

Abstract

We have implemented a unitary, numerically exact, Fourier split step method, based on a proper Suzuki-Trotter factorization of the quantum evolution operator, to propagate a two-body complex in arbitrary external potential landscapes taking into account exactly the internal structure. We have simulated spatially indirect Wannier-Mott excitons - optically excited electron-hole pairs with the two charges confined to different layers of a semiconductor heterostructure with prototypical 1D and 2D potentials emphasizing the effects of the internal dynamics and the insufficiency of mean-field methods in this context.
738
012028
012032
Grasselli, Federico; Bertoni, Andrea; Goldoni, Guido
Two-body quantum propagation in arbitrary potentials / Grasselli, Federico; Bertoni, Andrea; Goldoni, Guido. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 738:1(2016), pp. 012028-012032. [10.1088/1742-6596/738/1/012028]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1131693
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