In this paper, a novel quantum-dot cellular automata (QCA) adder design is presented that reduces the number of QCA cells compared to previously reported designs. The proposed one-bit QCA adder structure is based on a new algorithm that requires only three majority gates and two inverters for the QCA addition. By connecting n one-bit QCA adders, we can obtain an n-bit carry look-ahead adder wit...

In this paper we have discussed various memory architectures for Quantum Dot Cellular automata. New architectures have been proposed and their comparison has been done on the basis of area and latency. A protocol for using the serial memory has been outlined. A hybrid memory has been proposed. It is shown that the hybrid memory can be used as a tradeoff between area advantage of serial memory a...

Nowadays Quantum-dot Cellular Automata (QCA) is one of the new technologies in nanoscale which can be used future circuits. Most digital circuits are implemented with CMOS technology, but has some problems like power consumption and circuit size. So, for solving these a method presented. It clear that converters play crucial role world. due to aforementioned point, this paper, two code converte...

We present the experimental characterization of a leadless ~floating! double-dot system and a leadless quantum-dot cellular automata cell, where aluminum metal islands are connected to the environment only by capacitors. Here, single electron charge transfer can be accomplished only by the exchange of an electron between the dots. The charge state of the dots is monitored using metal islands co...