Two-body quantum propagation in arbitrary potentials

被引：2
|
作者：
Grasselli, Federico [1 ,2 ]
Bertoni, Andrea [2 ]
Goldoni, Guido [1 ,2 ]
机构：
[1] Univ Modena & Reggio Emilia, Dipartimento Sci Fis Informat & Matemat, Via Campi 213-a, Modena, Italy
[2] CNR, Ist Nanosci, S3, Via Campi 213-a, Modena, Italy
来源：
5TH INTERNATIONAL CONFERENCE ON MATHEMATICAL MODELING IN PHYSICAL SCIENCES (IC-MSQUARE 2016) | 2016年 / 738卷
关键词：
D O I：
10.1088/1742-6596/738/1/012028
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
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.
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页数：4
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