Results 251 to 260 of about 5,165 (285)

Reversible Flip-Flops in Quantum-Dot Cellular Automata

International Journal of Theoretical Physics, 2017
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Rad, Samaneh Kazemi, Heikalabad, Saeed Rasouli   +1 more
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Characterizing Quantum-Dot Cellular Automata

2014
We undertake an in-depth numerical study of quantum-dot cellular automata (QCA), a beyond-CMOS computing paradigm which represents bits as bistable charge distributions in cells consisting of quantum dots. Using semi-realistic but material-independent mod- elling, we characterize the building blocks of QCA circuits in as detailed and unbiased a manner ...
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Realization of quantum-dot cellular automata using semiconductor quantum dots

Superlattices and Microstructures, 2003
We demonstrate that a quantum-dot cellular automata device can be fabricated using electron beam lithographically defined gates on GaAs/AlGaAs heterostructure materials, and that by tuning the four quantum dot (J. Phys. C: Solid State Phys. 21 (1988) L893) system polarization of one double dot can lead to polarization in the neighboring double dot ...
C.G Smith, S Gardelis, A.W Rushforth, R Crook, J Cooper, D.A Ritchie, E.H Linfield, Y Jin, M Pepper   +8 more
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An efficient Quantum-Dot Cellular Automata adder

2011 Design, Automation & Test in Europe, 2011
This paper presents a ripple-carry adder module that can serve as a basic component for Quantum Dot Automata arithmetic circuits. The main methodological design innovation over existing state of the art solutions was the adoption of so called minority gates in addition to the more traditional majority voters. Exploiting this widened basic block set, we
BRUSCHI, FRANCESCO, F. Perini, RANA, VINCENZO, SCIUTO, DONATELLA   +3 more
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Quantum Dot Cellular Automata (QDCA)

2016
For representation of binary information and performing computations on them, cells containing quantum dots at defined locations are used. Tunnel barriers separate the neighboring dots. Under the control of a back plane voltage , electrons can tunnel between dots. But intercell barriers strictly prevent tunneling of electrons across cells.
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High-speed metallic quantum-dot cellular automata

2003 Third IEEE Conference on Nanotechnology, 2003. IEEE-NANO 2003., 2004
The computation approach known as quantum-dot cellular automata (QCA) is based on encoding binary information in the charge configuration of quantum-dot cells. This paradigm provides a possible route to transistor-less electronics at the nano-scale. QCA devices using single-electron switching in metal-dot cells have been fabricated. Here we examine the
null Mo Liu, C.S. Lent
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Kink-Solitons in Quantum-Dot Cellular Automata

Japanese Journal of Applied Physics, 2001
We examine the propagation of electric polarization in quantum-dot cellular automata (QCA) as a kink-soliton. We solve the time-dependent Schrödinger equation numerically by the Hartree approximation and also by the exact method. By the Hartree approximation, we find that the shape of the kink-soliton can be fitted very well to a function of ...
Satoshi Nakagawa, Mikio Eto, Kiyoshi Kawamura   +2 more
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Quantum-Dot Cellular Automata Design Guideline

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2006
Quantum-dot Cellular Automata (QCA) is attracting a lot of attentions due to its extremely small feature sizes and ultra low power consumption. Up to now several designs using QCA technology have been proposed. However, we found not all of the designs function properly. Further, no general design guidelines have been proposed so far.
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Experimental demonstration of quantum-dot cellular automata

Semiconductor Science and Technology, 1998
We present the experimental demonstration of a basic cell of quantum-dot cellular automata (QCA), a transistorless computation paradigm which addresses the issues of device density and interconnection. The device presented is a six-dot quantum-dot cellular system consisting of a four-dot QCA cell and two electrometer dots.
G L Snider, A O Orlov, I Amlani, G H Bernstein, C S Lent, J L Merz, W Porod   +6 more
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Quantum-dot cellular automata

Proceedings. 7th International Conference on Solid-State and Integrated Circuits Technology, 2004., 2005
G.L. Snider, A.O. Orlov, R. Kummamuru, J. Tinaler, G. Toth, G.H. Bernstein, C.S. Lent   +6 more
openaire   +1 more source