The strong-coupling polaron in static electric and magnetic fields
The strong-coupling polaron in static electric and magnetic fields
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DOI：
10.1088/1751-8113/46/42/425202
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发表时间：
2013-04
期刊：
影响因子：
--
通讯作者：
M. Griesemer;D. Wellig
中科院分区：
文献类型：
--
作者：
M. Griesemer;D. Wellig
本文研究了Fröhlich极化子在大电子-声子耦合极限下的静电和磁场作用。到耦合常数α？>中，基态能量由Pekar泛函的最小值给出，包括电磁场，只要Fröhlich模型中的这些场与α适当缩放。作为一个推论，得到了两个极化子在强磁场中的结合。
This paper is concerned with Fröhlich polarons subject to static electric and magnetic fields in the limit of large electron–phonon coupling. To leading order in the coupling constant, α?>, the ground state energy is shown to be correctly given by the minimum of the Pekar functional including the electromagnetic fields, provided these fields in the Fröhlich model are scaled properly with α. As a corollary, the binding of two polarons in strong magnetic fields is obtained.