Results 241 to 250 of about 7,911 (299)

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

Implementations of Quantum-dot Cellular Automata

2006 International Conference on Nanoscience and Nanotechnology, 2006
An introduction to quantum-dot cellular automata (QCA) is presented along with experimental implementations. QCA is a transistorless nanoelectronic computation paradigm that addresses the issues of device and power density, which are becoming increasingly important in the electronics industry.
Gregory Snider, Alexei Orlov, Craig Lent, Gary Bernstein, Marya Lieberman, Thomas Fehlner   +5 more
openaire   +1 more source

Molecular quantum-dot cellular automata

2003 Third IEEE Conference on Nanotechnology, 2003. IEEE-NANO 2003., 2004
Quantum-dot cellular automata (QCA) is an approach to computing which eliminates the need for transistors by representing binary digits as charge configurations rather than current levels. Coulomb interactions provide device-device coupling without current flow.
B. Isaksen, C.S. Lent
openaire   +1 more source

Quantum-dots cellular automata comparator

2007 7th International Conference on ASIC, 2007
In this paper, a novel comparator based on the QCA (Quantum-Dot Cellular Automata) is presented. The proposed comparator is simulated using the QCADesigner tool and experiment result shows that the logical function of the designed circuit is correct.
null Qiu Ke-ming, null Xia Yin-shui
openaire   +1 more source

Design of an Efficient N × N Butterfly Switching Network in Quantum-Dot Cellular Automata (QCA)

IEEE transactions on nanotechnology, 2020
Quantum-dot cellular automata (QCA) is a rapidly growing nanotechnology very well suited for designing ultra-dense, low-power, and high-performance digital circuits.
A. Bahar, K. Wahid
semanticscholar   +1 more source

Electronic quantum-dot cellular automata

2008 9th International Conference on Solid-State and Integrated-Circuit Technology, 2008
This paper presents an overview of the electronic implementation of quantum-dot cellular automata (QCA). QCA is a computing paradigm that encodes and processes information by the position of individual electrons. This opens the possibility of dense, ultra-low power devices.
Gregory L. Snider, Alexei O. Orlov, Vishwanath Joshi, Robin A. Joyce, Hua Qi, Kameshwar K. Yadavalli, Gary H. Bernstein, Thomas P. Fehlner, Craig S. Lent   +8 more
openaire   +1 more source

An Ultra-Low Cost Multilayer RAM in Quantum-Dot Cellular Automata

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2020
Quantum-dot cellular automata (QCA) is an alternative nanotechnology to traditional CMOS technology. In theory, circuits in QCA have the advantages of lower power consumption, higher integration density and switching frequency than circuits based on CMOS.
Zhixin Song, Guangjun Xie, Xin Cheng, Lei Wang, Yongqiang Zhang   +4 more
semanticscholar   +1 more source

Quantum-dot cellular automata adders

2003 Third IEEE Conference on Nanotechnology, 2003. IEEE-NANO 2003., 2004
In this paper, a novel quantum-dot cellular automata (QCA) adder design is presented that reduces the number of QCA cells compared to previously reported designs. The proposed one-bit QCA adder structure is based on a new algorithm that requires only three majority gates and two inverters for the QCA addition. By connecting n one-bit QCA adders, we can
null Wei Wang, K. Walus, G.A. Jullien
openaire   +1 more source

An improved eigensolver for quantum-dot cellular automata simulations

2013 IEEE High Performance Extreme Computing Conference (HPEC), 2013
The work in this paper describes the applicati on of an optimized eigensolver algorithm to produce the kernel calculations for simulating quantum-dot cellular automata (QCA) circuits, an emerging implementation of quantum computing The application of the locally optimal block preconditioned conjugate gradient (LOBPCG) method to calculate the ...
A. Taylor Baldwin, Jeffrey Will, Douglas Tougaw   +2 more
openaire   +1 more source

Reversible computation with quantum-dot cellular automata (QCA)

Proceedings of the 2nd conference on Computing frontiers, 2005
Quantum-dot cellular automata (QCA) is a strategy in which binary data is represented by charge configuration within a multi-dot cell. Data is transmitted to nearest neighbors by the Coulombic interaction. An electric field acts as a clock and imposes directionality on circuits. We have explored the connection between logical reversibility and physical
Craig S. Lent, Sarah E. Frost, Peter M. Kogge   +2 more
openaire   +1 more source