The Influence of Confining Parameters on the Ground State Properties of Interacting Electrons in a Two-dimensional Quantum Dot with Gaussian Potential
Küçük Resim Yok
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
KOREAN PHYSICAL SOC
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, the ground-state properties of an interacting electron gas confined in a twodimensional quantum dot system with the Gaussian potential v(r) = V-0(1 - exp(-r(2)/p)), where V-0 and p are confinement parameters, are determined numerically by using the Thomas-Fermi approximation. The shape of the potential is modified by changing the V-0 and p values, and the influence of the confining potential on the system's properties, such as the chemical energy, the density profile, the kinetic energy, the confining energy, etc., is analyzed for both the non-interacting and the interacting cases. The results are compared with those calculated for a harmonic potential, and excellent agreement is obtained in the limit of high p values for both the non-interacting and the interacting cases.
Açıklama
Anahtar Kelimeler
Quantum dot, Electron gas, Thomas-Fermi approximation, Gaussian potential
Kaynak
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
73
Sayı
11
