quantum cellular automata
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2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Ramil Nigmatullin ◽  
Elisabeth Wagner ◽  
Gavin K. Brennen

Author(s):  
Logan Hillberry ◽  
Matthew Jones ◽  
David Vargas ◽  
Patrick Rall ◽  
Nicole Yunger Halpern ◽  
...  

2021 ◽  
Author(s):  
Saeid Seyedi ◽  
Behrouz Pourghebleh

Abstract Since the scaling of transistors is growing rapidly, the need for an efficient alternative for the Complementary Metal-Oxide-Semiconductor (CMOS) technology to obtain further and extra processes in the circuits has known as the main problem. Over the last decade, Quantum-dot Cellular Automata (QCA) technology due to its excellent potential in developing designs with low-power consumption, high-speed, and high-density has been recognized as a suitable replacement to CMOS technology. In this regard, lowering the number of gates, the amount of cell count, and delay has been emphasized in the design of QCA-based circuits. Adders as the main unit in logic circuits and digital arithmetic play an important role in constructing various effective QCA designs. In this regard, Ripple Carry Adder (RCA) is a simple form of adders and due to its remarkable features can be useful to reach circuits with the minimum required area and power consumption. Therefore, in this study, a new design for RCA in QCA technology is recommended to reduce the cell count, amend the complexity, and decrease the latency. To verify the correctness of the suggested circuit, the QCADesigner version 2.0.3 as a well known simulator has been used. The evaluation results confirm that the proposed design has approximately 28.6% improvement in cell count in comparison to the state-of-the-art four-bit coplanar RCA designs in QCA technology. Also, the obtained results designate the effectiveness of the advised plan.


ChemPhysChem ◽  
2021 ◽  
Author(s):  
Andrew Palii ◽  
Denis Korchagin ◽  
Sergey Aldoshin ◽  
J. M. Clemente-Juan ◽  
Shmuel Zilberg ◽  
...  

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