Single-electron-based reversible logic elements for a quantum-mechanical computer

V. V. Antsiferov, Gennady I. Smirnov, G. G. Telegin

Arpita Ghosh, Amit Jain, Nameirakpam Basanta Singh +1 more

The paper presents design and simulation of, one of the quantum reversible gates, the Feynman gate, using the single electron threshold logic gate. One of the most emerging areas in quantum computing is the application of reversible gates in computational circuits for increasing the computational efficiency. Here the presented approach combines the advantages of the single electron threshold logic as well as the properties of the reversible gate. The stability of the circuit is also discussed.

S. Bandyopadhyay, Alexander A. Balandin, Vwani Roychowdhury +1 more

Kalyan S. Perumalla

Historically, logic gates have been used as building blocks for theoretical development of deterministic computation, and the assembled logic is realized in practice over physical processes such as composition of variable voltage levels in electronic circuit elements. However, much of the logic gate theory and design has focused on forward computation only, without explicit consideration of reversible execution. Here, we consider the reversibility aspect of traditional 2-bit gates and describe the concepts behind the development of reversible gates (which happen to require gates with at least 3 bit-wide inputs and outputs), and describe popular 3-bit reversible logic gates.

Biaoyan Hu, G. M. Jones, A. S. Mampahzy +3 more

Kuki Bordoloi, T. Theresal, Shanthi Prince

Considering the benefits of Quantum and Optics, if the logic gates in the quantum field and electronic structure are implemented using optical elements, then it will be benefited from advantages of Quantum and design, and these processing circuits can be used in optical computing and quantum computing, genetic processes, and other useful nanotechnology applications. Advantages of reversible logic systems and circuits have drawn a significant interest in recent years as a promising computing paradigm having application in low power CMOS, quantum computing, nanotechnology, and optical computing. In this study, we have introduced reversible optical Double Feynman gate using optical Mach-Zehnder interferometer (MZI) switches with new design. The proposed optical Double Feynman gate will be optical logic gate and reversible. As the proposed gate is a complete one, it can implement all the MZI-based quantum circuits.