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Portland State University

Electrical and Computer Engineering Faculty Publications and Presentations

2007

Logic circuits -- Design and construction

Articles 1 - 2 of 2

Full-Text Articles in Engineering

Search For Universal Ternary Quantum Gate Sets With Exact Minimum Costs, Marek Perkowski, Normen Giesecke, Dong Hwa Kim, Sazzad Hossain Jan 2007

Search For Universal Ternary Quantum Gate Sets With Exact Minimum Costs, Marek Perkowski, Normen Giesecke, Dong Hwa Kim, Sazzad Hossain

Electrical and Computer Engineering Faculty Publications and Presentations

The choice of the best set of universal ternary gates for quantum circuits is an open problem. We create exact minimum cost ternary reversible gates with quantum multiplexers using the method of iterative deepening depth-first search (IDDFS) [25]. Such search is better for small problems than evolutionary algorithms or other search methods. Several new gates that are provably exact minimum cost have been discovered. These gates are next used as library building blocks in the minimization of larger ternary quantum circuits like highly testable GFSOP cascades [15,16] (that generalize ESOP) as well as the wave cascades [24] generalized to ternary …


Inductive Learning Of Quantum Behaviors, Marek Perkowski, Martin Lukac Jan 2007

Inductive Learning Of Quantum Behaviors, Marek Perkowski, Martin Lukac

Electrical and Computer Engineering Faculty Publications and Presentations

In this paper studied are new concepts of robotic behaviors - deterministic and quantum probabilistic. In contrast to classical circuits, the quantum circuit can realize both of these behaviors. When applied to a robot, a quantum circuit controller realizes what we call quantum robot behaviors. We use automated methods to synthesize quantum behaviors (circuits) from the examples (examples are cares of the quantum truth table). The don’t knows (minterms not given as examples) are then converted not only to deterministic cares as in the classical learning, but also to output values generated with various probabilities. The Occam Razor principle, fundamental …