Arizona State University – Page 5

A Quantum Waveguide Array Generator For Performing Fourier Transforms

Akis R., Ferry D.K., Arizona State University, US

Recently, quantum computing has gained attention as a possible means of greatly increasing the speed of certain calculations when compared with traditional, binary computing. A key part of many quantum computing algorithms is the performance [...]

Initial State Preparation and Stability in Narrow Band-Gap Semiconductor Qubits

Gilbert M.J., Akis R., Ferry D.K., Arizona State University, US

The output of a quantum computing system depends on the quality of the preparation of the initial state of the qubit or qubits to be used in the subsequent computations. Here, we have defined a [...]

Monte Carlo and Energy Balance Simulations of a Deep Sub-micrometer Conventional and Asymmetric MOSFET Device Structures

Mannargudi A., Vasileska D., Arizona State University, US

We have simulated a 100 nm assymetric MOSFET device structure using both the Silvaco ATLAS energy balance model and the in-house 2D Monte Carlo particle-based simulator. Our investigations show that the energy balance simulation results [...]

Molecular Control of the Drain Current in a Buried Channel MOSFET

Yang J., de la Garza L., Thornton T.J., Kozicki M., Gust D., Arizona State University, US

We present results from a buried channel MOSFET with a molecular monolayer deposited on the surface. After attachment of the monolayer, the threshold voltage of the device shifts by approximately – 4.5 V. We explain [...]

Gain in a Semiconductor Waveguide Qubit

Harris J., Akis R., Ferry D.K., Arizona State University, US

Recently, it has been suggested that it may be possible to use combinations of coupled quantum wire waveguides to form quantum computational qubits [1],[2]. However, there are several related problems intrinsic to this approach. First, [...]

Quantum Effects in SOI Devices

Ahmed S.S., Akis R., Vasileska D., Arizona State University, US

Quantum effects have been reported to play an important role in the operation of narrow width SOI devices, in which the carriers experience a two dimensional confinement in a square quantum well at the semiconductor-oxide [...]

Self-consistent Modeling of Open Quantum Devices

Akis R., Shifren L., Ferry D.K., Arizona State University, US

In this paper, we describe a method of simulating electron transport in semiconductor devices that operate in the quantum regime. Specifically, devices formed in which the electrons are confined to two dimensions (2D) and transport [...]

Fullband Particle-Based Simulation of High-Field Transient Transport in III-V Semiconductors

Wigger S., Saraniti M., Goodnick S.M., Leitenstorfer A., Arizona State University, US

Motivated by the recent experimental measurements of Tera-Hertz radiation [1], this work presents the transient analysis of photogenerated electron-hole pairs in GaAs and InP pin diodes usinga full-band particlebased simulator. Excellent agreement is found between [...]

The Role of the Quantization Effects on the Operation of 50 nm MOSFET and 250 nm FIBMOS Devices

Vasileska D., Knezevic I., Akis R., Ferry D.K., Arizona State University, US

We investigate quantum-mechanical space quantization effects in conventional MOSFET devices and asymmetric device structure fabricated via focused ion beam technique (FIBMOS device). We find that the inclusion of the quan-tum-mechanical space-quantization effects along the growth [...]

Gain in a Semiconductor Waveguide Qubit

Harris J., Akis R., Ferry D.K., Arizona State University, US

Recently, it has been suggested that it may be possible to use combinations of coupled quantum wire waveguides to form quantum computational qubits [1],[2]. However, there are several related problems intrinsic to this approach. First, [...]