Subtractor circuits using different wire crossing techniques in quantum-dot cellular automata

2020 ◽  
Vol 14 (02) ◽  
pp. 1 ◽  
Author(s):  
Marshal Raj ◽  
Suhaib Ahmed ◽  
Lakshminarayanan Gopalakrishnan
Keyword(s):  
Cellular Automata ◽  
Quantum Dot ◽  
Quantum Dot Cellular Automata ◽  
Wire Crossing

A Step Towards Optimisation of 2 to 4 Decoder Using Farooq-Nikesh-Zaid Gate with Coplanar Crossing in Quantum Dot Cellular Automata

2020 ◽  
Vol 17 (5) ◽  
pp. 2120-2124
Author(s):  
R. Jayalakshmi ◽  
M. Senthil Kumaran ◽  
R. Amutha
Keyword(s):  
Cellular Automata ◽  
Quantum Dot ◽  
Complementary Metal Oxide Semiconductor ◽  
Basic Structure ◽  
Oxide Semiconductor ◽  
Nand Gate ◽  
Quantum Dot Cellular Automata ◽  
Wire Crossing ◽  
Majority Voter ◽  
Low Power Dissipation

The limitations of the existing Complementary Metal Oxide Semiconductor are leading the momentum to various new approaches like Quantum-dot Cellular Automata (QCA). QCA offers low power dissipation, less area and high switching speeds. The Majority Voter is the basic structure that votes out on the majority of the inputs to implement a Boolean Function. The QCA architectures are created by using majority gates with inverters or by using universal gates like AND–OR-Inverter and NAND–NOR-Inverter gate. This paper proposes a quantum-dot cellular automata 2 to 4 decoder using Universal Farooq-Nikesh-Zaid gate, which utilizes the NAND gate logic to implement the functionality. The design offers 33% reduction in the cell count, reduction in the area with Six Clock Phases in simple co planar wire crossing. The proposed design is validated using the QCA Designer tool.

Improved Quantum Dot Cellular Automata 4:1 Multiplexer Circuit Unit

2014 ◽  
Vol 2014 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Arighna Sarkar ◽  
◽  
Debarka Mukhopadhyay ◽  
Keyword(s):  
Cellular Automata ◽  
Quantum Dot ◽  
Quantum Dot Cellular Automata
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