One Dimensional Time-Dependent Tunnelling of Excitons

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• 作者：Patrick Kilcullen ; Logan Salayka-Ladouceur ; Kevin Malmgren…
• 刊名：Few-Body Systems
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：58
• 期：2
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Particle and Nuclear Physics; Nuclear Physics, Heavy Ions, Hadrons; Atomic, Molecular, Optical and Plasma Physics;
• 出版者：Springer Vienna
• ISSN：1432-5411
• 卷排序：58

文摘

We study the time-dependent tunnelling of excitons in one dimension using numerical integration based on the Crank–Nicholson method. A complete development of the time-dependent simulator is provided. External barriers studied include single and double delta barriers. We find that the appearance of transmission resonances depends strongly on the dielectric constant, relative effective masses, and initial spatial spread of the wavefunction. A discussion regarding applications to realistic systems is provided.