Scalability of Globally Asynchronous QCA (Quantum-Dot Cellular Automata) Adder Design

Choi, Myungsu; Choi, Minsu

doi:10.1007/s10836-007-5052-0

Cited by 13 publications

(6 citation statements)

References 13 publications

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“…According to previous studies, several logic gates and computing devices [13] are implemented with QCA. Basic implementations that have been proposed are the binary wire [6], the majority gate, AND gate [14], OR gate [14], NOT gate [14], XOR gate [14], bit-serial adder [15,16], full adder [1,14,15,17,18], multiplier [19], multiplexer [1,2], flip-flop [20][21][22], serial memory [23,24], parallel memory [25], Arithmetic Logic Unit [1,26], microprocessor [26], Programmable Logic Array (PLA) [27], etc.…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of modular 2ⁿ to 1 quantum‐dot cellular automata (QCA) multiplexers

Mardiris

Karafyllidis

2009

Circuit Theory & Apps

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SUMMARYIn this paper a novel design of a quantum-dot cellular automata (QCA) 2 to 1 multiplexer is presented. The QCA circuit is simulated and its operation is analyzed. A modular design and simulation methodology is developed, which can be used to design 2 n to 1 QCA multiplexers using the 2 to 1 QCA multiplexer as a building block. The design methodology is formulated in order to increase the circuit stability.

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Section: Introductionmentioning

confidence: 99%

Design and simulation of modular 2ⁿ to 1 quantum‐dot cellular automata (QCA) multiplexers

Mardiris

Karafyllidis

2009

Circuit Theory & Apps

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“…It is possible to implement all combinational and sequential logic functions by properly arranging cells so that the polarization of one cell sets the polarization of a nearby cell [27]. According to previous studies, several logic gates and computing devices [28] are implemented with QCA.…”

Section: Proposed Xor Gatementioning

confidence: 99%

Novel Adder Circuits Based On Quantum-Dot Cellular Automata (QCA)

Ahmad¹,

Bhat²,

Ahmad³

2014

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Quantum-dot cellular automaton (QCA) is a novel nanotechnology that provides a very different computation platform than traditional CMOS, in which polarization of electrons indicates the digital information. This paper demonstrates designing combinational circuits based on quantum-dot cellular automata (QCA) nanotechnology, which offers a way to implement logic and all interconnections with only one homogeneous layer of cells. In this paper, the authors have proposed a novel design of XOR gate. This model proves designing capabilities of combinational circuits that are compatible with QCA gates within nano-scale. Novel adder circuits such as half adders, full adders, which avoid the fore, mentioned noise paths, crossovers by careful clocking organization, have been proposed. Experiment results show that the performance of proposed designs is more efficient than conventional designs. The modular layouts are verified with the freely available QCADesigner tool.

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“…It is possible to implement all combinational and sequential logic functions by properly arranging cells so that the polarization of one cell sets the polarization of a nearby cell [22]. According to previous studies, several logic gates and computing devices has implemented with QCA [23].…”

Section: The Proposed Xor Gatementioning

confidence: 99%

A new F-shaped XOR gate and its implementations as novel adder circuits based Quantum-dot cellular Automata (QCA)

Ahmad¹,

Ahmad²,

Khan³

2014

IOSRJCE

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Quantum-dot cellular automata (QCA) is a novel nanotechnology that promises smaller size, lower power consumption, with faster speed and is considered as a solution to the scaling problems in complementary metal oxide semiconductor technology. We propose a novel QCA F-shaped XOR gate. The proposed gate is simple in structure and powerful in terms of implementing digital circuits. We implement novel adder circuits like half adders and half subtractors by introducing the proposed XOR gate. The proposed adder circuits are simple in design and occupy a fraction of area, as compared to previous designs. These circuits are suitable for optimizing the complex structures. Simulation results demonstrate that the new structures have achieved significant improvements in terms of circuit complexity. The functionality of proposed structures have been checked by QCADesigner tool.

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Scalability of Globally Asynchronous QCA (Quantum-Dot Cellular Automata) Adder Design

Cited by 13 publications

References 13 publications

Design and simulation of modular 2ⁿ to 1 quantum‐dot cellular automata (QCA) multiplexers

Design and simulation of modular 2ⁿ to 1 quantum‐dot cellular automata (QCA) multiplexers

Novel Adder Circuits Based On Quantum-Dot Cellular Automata (QCA)

A new F-shaped XOR gate and its implementations as novel adder circuits based Quantum-dot cellular Automata (QCA)

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Scalability of Globally Asynchronous QCA (Quantum-Dot Cellular Automata) Adder Design

Cited by 13 publications

References 13 publications

Design and simulation of modular 2n to 1 quantum‐dot cellular automata (QCA) multiplexers

Design and simulation of modular 2n to 1 quantum‐dot cellular automata (QCA) multiplexers

Novel Adder Circuits Based On Quantum-Dot Cellular Automata (QCA)

A new F-shaped XOR gate and its implementations as novel adder circuits based Quantum-dot cellular Automata (QCA)

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Product

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Design and simulation of modular 2ⁿ to 1 quantum‐dot cellular automata (QCA) multiplexers

Design and simulation of modular 2ⁿ to 1 quantum‐dot cellular automata (QCA) multiplexers