Тип публикации: статья из журнала
Год издания: 2011
Идентификатор DOI: 10.1209/0295-5075/96/50002
Аннотация: This paper introduces a semi-analytical method for calculating the Hall conductivity in the single-band approximation. The method goes beyond the linear response theory and thus, it formally imposes no limitation on the electric-field magnitude. It is shown that, when the Bloch frequency exceeds the cyclotron frequency, the Hall cuПоказать полностьюrrent decreases with increasing electric field. The obtained results can be directly applied to the cold Bose atoms in a 2D optical lattice, where the single-band approximation is well justified. Copyright (C) EPLA, 2011
Журнал: EPL
Выпуск журнала: Vol. 96, Is. 5
ISSN журнала: 02955075
Место издания: MULHOUSE
Издатель: EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY