Results 211 to 220 of about 432 (251)

Fanout in quantum dot cellular automata

63rd Device Research Conference Digest, 2005. DRC '05., 2005
In this report, we describe the fabrication and experimental demonstration of fanout in QCA. Fanout is important as it is necessary for complex digital logic circuits and is essential for generating compact designs, as multiple cells can be then driven by a single driver cell.
K.K. Yadavalli, A.O. Orlov, R.K. Kummamuru, C.S. Lent, G.H. Bernstein, G.L. Snider   +5 more
openaire   +1 more source

Quantum-Dot Cellular Automata Serial Comparator

2008 11th EUROMICRO Conference on Digital System Design Architectures, Methods and Tools, 2008
The quantum-dot cellular automata (QCA) are one of the few alternative computing platforms that meet most of the criteria desired for computing platforms of the future. One of the basic concepts that has popularized the QCA platform to computer designers is adiabatic pipelining, which implicitly assures the correct data flow and in this view simplifies
Blaz Lampreht, Luka Stepancic, Igor Vizec, Bostjan Zankar, Miha Mraz, Iztok Lebar Bajec, Primoz Pecar   +6 more
openaire   +1 more source

Digital Logic Gate Using Quantum-Dot Cellular Automata

Science, 1999
A functioning logic gate based on quantum-dot cellular automata is presented, where digital data are encoded in the positions of only two electrons. The logic gate consists of a cell, composed of four dots connected in a ring by tunnel junctions, and two single-dot electrometers. The device is operated by applying inputs to the gates of the cell.
, Amlani, , Orlov, , Toth, , Bernstein, , Lent, , Snider   +5 more
openaire   +2 more sources

Restoring Divider Design for Quantum-Dot Cellular Automata

2011 11th IEEE International Conference on Nanotechnology, 2011
A digit recurrent restoring binary divider design for quantum-dot cellular automata (QCA) is presented in detail. It is a conventional design that uses controlled full subtractor cell units to produce a relatively simple and efficient implementation.
Seong-Wan Kim, Earl E. Swartzlander
openaire   +1 more source

Reversible Flip-Flops in Quantum-Dot Cellular Automata

International Journal of Theoretical Physics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rad, Samaneh Kazemi, Heikalabad, Saeed Rasouli   +1 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

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.
openaire   +1 more source

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
openaire   +1 more source