89 citations · 169 across the 4 of their papers we have counts for
4 papers
Theory of one and two donors in Silicon
A. L. Saraiva, A. Baena, M. J. Calderón +1
We provide here a roadmap for modeling silicon nano-devices with one or two group V donors (D). We discuss systems containing one or two electrons, that is, D^0, D^-, D_2^+ and D_2…
Impact of the valley degree of freedom on the control of donor electrons near a Si/SiO_2 interface
A. Baena, A. L. Saraiva, Belita Koiller +1
We analyze the valley composition of one electron bound to a shallow donor close to a Si/barrier interface as a function of an applied electric field. A full six-valley effective m…
Exchange coupling in semiconductor nanostructures: Validity and limitations of the Heitler-London approach
M. J. Calderon, Belita Koiller, S. Das Sarma
The exchange coupling of the spins of two electrons in double well potentials in a semiconductor background is calculated within the Heitler-London (HL) approximation. Atomic and q…
Quantum control of donor electrons at the Si-SiO2 interface
M. J. Calderon, Belita Koiller, Xuedong Hu +1
Prospects for the quantum control of electrons in the silicon quantum computer architecture are considered theoretically. In particular, we investigate the feasibility of shuttling…