A novel design of 8-bit adder/subtractor by quantum-dot cellular automata

Kianpour, Moein; Sabbaghi‐Nadooshan, Reza; Navi, Keivan

doi:10.1016/j.jcss.2014.04.012

Cited by 106 publications

(43 citation statements)

References 15 publications

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“…The QCA is an emerging technology in which the logic states are not stored as voltage levels, but rather as the position of the individual electrons [12,13]. A QCA cell can be viewed as a set of four "dots" that are placed at the corner of a square.…”

Section: Background Studymentioning

confidence: 99%

A Universal Reversible Gate Architecture for Designing N-Bit Comparator Structure in Quantum-dot Cellular Automata

Bhoi¹,

Misra²,

Pradhan³

2017

IJGDC

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Section: Background Studymentioning

confidence: 99%

A Universal Reversible Gate Architecture for Designing N-Bit Comparator Structure in Quantum-dot Cellular Automata

Bhoi¹,

Misra²,

Pradhan³

2017

IJGDC

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“…In QCA, the cell connects two free electrons, and the logical values '0', '1' depend on the position of the electrons inside the quantum dot cell, which are due to the Coulomb force. Changing the logic value from '1' to '0' does not lead to the discharge of the capacitor, unlike the usual CMOS [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Coplanar Qca Adders for Arithmetic Circuits

Safoev¹,

Jeon²

2018

IJET

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A quantum-dot cellular automaton (QCA) is one of the most perspective nanotechnologies for future computing paradigm. We propose low complexity QCA adders for arithmetic circuit design. The proposed majority-gate based full adder is coplanar layout, and on the basis of clock-phase crossover technique. The results of the proposed structures from the QCA simulator tool are analyzed and compared with previous works.

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“…Several studies have been reported about QCA circuits [3][4][5][6][7][8][9][10][11][12][13][14][15]. Exclusive-OR (XOR) is the most logical gate and is widely used in many combinational and sequential logic circuits.…”

Section: Introductionmentioning

confidence: 99%

“…Exclusive-OR (XOR) is the most logical gate and is widely used in many combinational and sequential logic circuits. Several XOR gates have been reported in [3][4][5][6][7][8]. Therefore numerous studies have been reported about QCA Full Adder [9][10][11][12][13][14] and Programmable Logic Array [16].A new bit serial QCA adder has also been proposed in [17] that uses carry feedback and only requires three majority gates and two inverters.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Efficient Combinational Logic Circuits with Minimum Area and Circuit Complexity Using Quantum- dot Cellular Automata (QCA)

2017

IJSR

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Quantum dot cellular automata (QCA), is a rising innovation and a possible alternative for scaling-down trend of VLSI technology. It advantages diminutive size, low power consumption, better switching speed. QCA seems to be a good competitor for future digital systems and widely utilized as a part of advance frameworks. Therefore numerous implementations of QCA based logic functions have been proposed so far. In this paper, an efficient XOR gates is presented. The model proves designing capabilities of combinational logic circuits. The proposed XOR gate has been testified to design logic circuits for QCA. Adder circuit is the most fundamental component used in digital systems. An efficient Half-Adder and Half-Subtractor circuits are designed employing the proposed XOR gate. Performance evolutions of the proposed XOR circuits are compared to its conventional counter parts. The functionality and circuit operation of the proposed designs have been authenticate used QCA Designer simulation tool Ver. 2.0.3.

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A novel design of 8-bit adder/subtractor by quantum-dot cellular automata

Cited by 106 publications

References 15 publications

A Universal Reversible Gate Architecture for Designing N-Bit Comparator Structure in Quantum-dot Cellular Automata

A Universal Reversible Gate Architecture for Designing N-Bit Comparator Structure in Quantum-dot Cellular Automata

Coplanar Qca Adders for Arithmetic Circuits

Design and Implementation of Efficient Combinational Logic Circuits with Minimum Area and Circuit Complexity Using Quantum- dot Cellular Automata (QCA)

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