206 citations · 948 across the 28 of their papers we have counts for
4 papers · 1 filter
Coulomb effects in artificial molecules
F. Ramirez, E. Cota, S. E. Ulloa
We study the capacitance spectra of artificial molecules consisting of two and three coupled quantum dots from an extended Hubbard Hamiltonian model that takes into account quantum…
Far-infrared absorption in parallel quantum wires with weak tunneling
T. V. Shahbazyan, S. E. Ulloa
We study collective and single-particle intersubband excitations in a system of quantum wires coupled via weak tunneling. For an isolated wire with parabolic confinement, the Kohn'…
Anisotropic optical response of the diamond (111)-2x1 surface
Cecilia Noguez, Sergio E. Ulloa
The optical properties of the 21 reconstruction of the diamond (111) surface are investigated. The electronic structure and optical properties of the surface are studied us…
Selection Rules for Transport Excitation Spectroscopy of Few-Electron Quantum Dots
Daniela Pfannkuche, Sergio E. Ulloa
Tunneling of electrons traversing a few-electron quantum dot is strongly influenced by the Coulomb interaction leading to Coulomb blockade effects and single-electron tunneling. We…