Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2008

Идентификатор DOI: 10.1103/PhysRevA.77.063604

Ключевые слова: Atomic physics, Atoms, Crystal lattices, Optical materials, Standards, Systems analysis, Velocity control, American Physical Society (APS), Drift currents, Master equations, Optical lattices (OL), standard form, Velocity distribution

Аннотация: This paper discusses the master equation approach to the derivation of the Esaki-Tsu equation for drift current. It is shown that the relaxation term in the master equation can be identified by measuring the velocity distribution of the carriers. We also show that the standard form of the relaxation term, used earlier to derive the Esaki-Tsu equation, predicts unphysical velocity distribution. We suggest a more elaborate relaxation term, which is argued to correctly capture the effect of a bosonic bath in experiments on atomic current in optical lattices.

Журнал: PHYSICAL REVIEW A

Выпуск журнала: Vol. 77, Is. 6

Номера страниц: 063604

ISSN журнала: 10502947

Место издания: COLLEGE PK

Издатель: AMER PHYSICAL SOC

• Kolovsky Andrey R. (LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660036, Russia)

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