Engineering topics

Allmen, P. von

Publications and source records attributed to Allmen, P. von.

9 records

All sources NASA NTRS DOE OSTI

NASA NTRS2004

Effect of nuclear spin dynamics on quantum computing operations in spin based qubits

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nuclear spin dynamics quantum computation↗

NASA NTRS2003

Conduction band valley splitting in silicon nano-structures

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silicon quantum computing strain tight-binding↗

NASA NTRS2003

Study of strain boundary conditions and GaAs buffer sizes in InGaAs quantum dots

NEMO 3-D has been developed for the simulation of electronic structure in self-assembled InGaAs quantum dots on GaAs substrates. Typical self-assembled quantum dots in that material system contain about 0.5 to 1 million atoms. Effects of strain by the surrounding GaAs buffer modify the electronic structure inside the quantum dot significantly and a large GaAs buffer must be included in the strain and electronic structure.

transport tunneling quantum↗

NASA NTRS2003

Magneto-optical response of InAs lens-shaped self-assembled quantum dots

In this work, we demonstrate a realistic modeling of the electronic structure for InAs self-assembled quantum dots and investigate the magneto-optical response, i.e., Zeeman splitting and transition rates between electron and hole levels.

quantum dot Lande g factor magnetic field↗

NASA NTRS2003