Indirect Coupling in a Cluster of Quantum-Dot-Based Charge Qubits
Abstract:We have theoretically studied a problem of the organization of controllable interactions among charge qubits in a three-qubit cluster. Our proposal is to use an auxiliary quantum dot structure that mediates interqubit coupling. A non-trivial evolution of the cluster is generated through the electromagnetically induced resonant single-electron conditional excitations in the structure. As we demonstrate, the two- and three-qubit operations CZ and CCZ based on conditional phase accumulation and, therefore, CNOT and Toffoli gates, can be performed with high accuracy in several steps at relatively short times.
Document Type: Research Article
Publication date: September 1, 2010
More about this publication?
- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites