Naslov
New Quantum Haydrodynamic Models: Advances and Drawbacks

Autori
Milišić, Josipa Pina ; Matthes, D ; Juengel, A.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, ostalo

Skup
NanoQ2006

Mjesto i datum
Milano, Italija, 30.11.2006. - 01.12.2006

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
semiconductor modeling ; quantum hydrodynamic models ; Wigner equation ; resonant-tunneling diode

Sažetak
Semiconductor devices have reached the nanoscale length where quantum effects play an significant role. Usually, quantum systems are described by microscopic quantum models. In order to reduce the computational effort and to work with intuitive quantities, macroscopic quantum models have been derived. Quantum hydrodynamic models belong to this group. In this talk we derive and compare different quantum hydrodynamic models. The equations can be obtained formally from the Wigner equation, using the moment method. By taking the certain closure condition and choosing the collision operator, we derive different quantum hydrodynamic models. Finally, we present some numerical results for a one-dimensional resonant tunneling diode.

Izvorni jezik
Engleski

Znanstvena područja
Matematika

POVEZANOST RADA