quantum computing – TechConnect Briefs

Fault Tolerant Quantum Computation with new Reversible Gate

Vasudevan D.P., Lala P.K., Parkerson J.P., University of Arkansas, Fayetteville, US

Current CMOS technology will be promising only for the next two decades or less until it reaches its physical limit. Once the atomic level of system design comes to the road of technology, Quantum mechanics [...]

Quantum Information Processing with Nuclear Spin-Based Devices

Havel T.F., Cappellaro P., Ramanathan C., Cory D.G., Massachusetts Institute of Technology, US

This talk will illustrate the benefits offered by QIP with two devices which use quantum entanglement among nuclear spins to defeat the Heisenberg limits: (1) a spin gyroscope that operates by detecting the frequency shift [...]

Defects and Fault Characterization in Quantum Cellular Automata

Baradaran Tahoori M., Momenzadeh M., Huang J., Lombardi F., Northeastern University, US

In this paper, a detailed simulation-based characterization of QCA defects and study of their effects at logic-level are presented. Different defect mechanisms for QCA active devices and interconnects are considered and the appropriate fault models [...]

A Scheme for Electrical Detection of Single Electron Spin Resonance

Martin I., Mozyrsky D., Jiang H.W., Los Alamos National Laboratory, US

We study a scheme for electrical detection of the spin resonance (ESR) of a single electron trapped near a Field Effect Transistor (FET) conduction channel. In this scheme, the resonant Rabi oscillations of the trapped [...]

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 [...]

Nanocomputer Systems Engineering

Frank M.P., University of Florida, US

Regardless of whichever precise nano-device technology ends up being most viable for general-purpose computing, the design of densely-packed computer systems comprised of nanometer-scale bit-devices offers a number of interesting new challenges for the field of [...]

Principles of Electron Wave Computing using Quantum Resistor Networks

Wu C.H., University of Missouri-Rolla, US

Quantum resistor networks are interconnected thin wires or electron conducting wave guides. A multiple input-output quantum network is capable of performing massive parallel computing, similar to optical computing. Basic logic functions and arithmetic computation have [...]

Novel Computing Architecture on Arrays of Josephson Persistent Current Bits

Han J., Jonker P., Delft University of Technology, NL

A superconducting qubit (or quantum bit), which consists of a micrometer-sized loop with three Josephson junctions, has two persistent currents of opposite direction as its two states. The states of the qubit can be brought [...]

Principles of Electron Wave Computing using Quantum Resistor Networks

Wu C.H., University of Missouri-Rolla, US

Quantum resistor networks are interconnected thin wires or electron conducting wave guides. A multiple input-output quantum network is capable of performing massive parallel computing, similar to optical computing. Basic logic functions and arithmetic computation have [...]