A Novel Design for Quantum-dot Cellular Automata Cells and Full Adders

Abstract

Quantum dot Cellular Automata (QCA) is a novel and potentially attractive technology for implementing computing architectures at the nanoscale. The basic Boolean primitive in QCA is the majority gate. In this paper we present a novel design for QCA cells and another possible and unconventional scheme for majority gates. By applying these items, the hardware requirements for a QCA design can be reduced and circuits can be simpler in level and gate counts. As an example, a 1-bit QCA adder is constructed by applying our new scheme and is compared to the other existing implementation. Beside, some Boolean functions are expressed as examples and it has been shown, how our reduction method by using new proposed item, decreases gate counts and levels in comparison to the other previous methods.Comment: arXiv admin note: text overlap with arXiv:cond-mat/010440

An efficient full adder circuit design in Quantum-dot Cellular Automata technology

“…Figure 4. The structure of 1-bit full adder in, (a) [7] , (b) [8] , (c) [5] , (d) [9] According to the Equation ( 8), as demonstrated in Figure 4(b), another design of full adder consists of three majority gates and one inverters in Ref. [8] [8] .…”

“…According to the Equation ( 10), a design of full adder was proposed in Ref. [9] [9] . As shown in Figure 4(d), this design consist of a three-input majority gate, one inverter, and an unconventional form of majority gate with five inputs.…”

Design and Analysis of Efficient Exact and In-Exact Reversible 4:2 Compressor Using Qca

“…For each bit of loss of information is given as KTln (2) by Launder in 1961, where K is Boltzmann constant and T is absolute temperature [6] The increase in power consumption is addressed by designing the system using reversible logic [7]. To achieve optimized performance, reversible logic is the recently proposed solution to design digital circuits using QCA [8][9][10][11][12][13][14][15]. Low power is promised by reversible logic because of no information loss and QCA committed for scaling beyond CMOS.…”

Efficient design of BinDCT in quantum‐dot cellular automata (QCA) technology

“…In [19][20][21], memory circuits have been proposed. In [22][23][24][25][26][27][28][29][30][31], reversible full adder (F-A)/substractor (F-S) and multiplier designs using a QCA reversible gate has been designed. In [32], a sequential circuits in multilayer QCA structure has been proposed.…”