Тип публикации: статья из журнала
Год издания: 2013
Идентификатор DOI: 10.1088/0953-4075/46/14/145302
Ключевые слова: Common sense, Gauge fields, Landau-Zener, Quantum particles, Single-band approximation, Square lattices, Electric breakdown, Gages
Аннотация: We analyse dynamics of a quantum particle in a square lattice in the Hall configuration beyond the single-band approximation. For vanishing gauge (magnetic) field this dynamics is defined by the inter-band Landau-Zener tunnelling, which is responsible for the phenomenon known as the electric breakdown. We show that in the presence Показать полностьюof a gauge field this phenomenon is absent, at least, in its common sense. Instead, the Landau-Zener tunnelling leads to the appearance of a finite current which flows in the direction orthogonal to the vector of a potential (electric) field.
Журнал: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Выпуск журнала: Vol. 46, Is. 14
ISSN журнала: 09534075
Место издания: BRISTOL
Издатель: IOP PUBLISHING LTD