Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Energy pumping in a quantum nanoelectromechanical system
Репозиторій DSpace/Manakin
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Energy pumping in a quantum nanoelectromechanical system
Тема:
Низкоразмерные и неупорядоченные системы
Інший ID:
PACS: 73.23.–b, 73.63.–b, 85.85.+j
Посилання:
Energy pumping in a quantum nanoelectromechanical
system / T. Nord, L.Y. Gorelik // Физика низких температур. — 2005. — Т. 31, № 6. — С. 703-707. — Бібліогр.: 20 назв. — англ.
Підтримка:
The authors would like to thank Robert Shekhter,
Jari Kinaret, and Anatoli Kadigrobov for valuable discussions
related to this manuscript.
This work was supported in part by the European
Commission throuh project FP-003673 CANEL of the
IST Priority. The views expressed in this publication
are those of the authors and do not necessarily reflect
the official European Commission’s view on the subject.
Financial support from Swedish SSF and Swedish
VR is also gratefully acknowledged.
Дата:
2005
Переглядів:
756
Завантажень:
461
Анотація:
Fully quantized mechanical motion of a single-level quantum coupled to two voltage biased
electronic leads is studied. It is found that there are two different regimes depending on the applied
voltage. If the bias voltage is below a certain threshold (which depends on the energy of the
vibrational quanta) the mechanical subsystem is characterized by a low level of excitation. Above
a threshold the energy accumulated in the mechanical degree of freedom dramatically increases.
The distribution function for the energy level population and the current through the system in
this regime is calculated.
