Results 71 to 80 of about 4,783 (230)
Silicon Atomic Quantum Dots Enable Beyond-CMOS Electronics
, 2013 We review our recent efforts in building atom-scale quantum-dot cellular automata circuits on a silicon surface. Our building block consists of silicon dangling bond on a H-Si(001) surface, which has been shown to act as a quantum dot.
AG Fowler +37 more
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Ratchet Cellular Automata [PDF]
, 2002 In this work we propose a ratchet effect which provides a general means of performing clocked logic operations on discrete particles, such as single electrons or vortices. The states are propagated through the device by the use of an applied AC drive. We
C. Buzea +6 more
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Toward Practical Single‐Molecule/Atom Switches
Advanced Science, Volume 11, Issue 29, August 7, 2024.This review highlights the key developments in the fabrication and application of molecular/atomic switching devices, aiming to provide a comprehensive understanding of the working principles and elucidate the factors that influence their performance. A critical discussion of the main challenges for realizing and developing practical molecular/atomic ...
Xiaona Xu +4 more
wiley +1 more source
An Efficient Design of QCA Full-Adder-Subtractor with Low Power Dissipation
Journal of Electrical and Computer Engineering, 2021 The continuous market demands for high performance and energy-efficient computing systems have steered the computational paradigm and technologies towards nanoscale quantum-dot cellular automata (QCA).
Ismail Gassoumi +2 more
doaj +1 more source
, 2007 We formulate a new concept for computing with quantum cellular automata composed of arrays of nanostructured superconducting devices. The logic states are defined by the position of two trapped flux quanta (vortices) in a 2x2 blind-hole-matrix etched on ...
Berdiyorov, G. R. +2 more
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Locally synchronous, globally asynchronous design for quantum-dot cellular automata (LSGA QCA) [PDF]
5th IEEE Conference on Nanotechnology, 2005., 2005 The concept of clocking for QCA, referred to as the four-phase clocking, is widely used. However, inherited characteristics of QCA, such as the way to hold state, the way to synchronize data flows, and the way to power QCA cells, make the design of QCA circuits quite different from VLSI and introduce a variety of new design challenges and the most ...
null Minsu Choi, null Nohpill Park
openaire +1 more source
Ab initio studies of counterion effects in molecular quantum‐dot cellular automata
Journal of Computational Chemistry, Volume 45, Issue 7, Page 392-404, March 15, 2024.Randomly‐placed external counterions near ionic computational molecules may degrade QCA device operation. Ab initio calculations show that presence of nearby counterions affect the electron transfer (ET) matrix element and the inner‐sphere reorganization energy of a molecule.
Nishattasnim Liza +3 more
wiley +1 more source
The Role of Correlation in the Operation of Quantum-dot Cellular Automata
, 2001 Quantum-dot Cellular Automata (QCA) may offer a viable alternative of traditional transistor-based technology at the nanoscale. When modeling a QCA circuit, the number of degrees of freedom necessary to describe the quantum mechanical state increases ...
Lent, Craig S., Toth, Geza
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Integrating a nanologic knowledge module Into an undergraduate logic design course [PDF]
, 2008 This work discusses a knowledge module in an undergraduate logic design course for electrical engineering (EE) and computer science (CS) students, that introduces them to nanocomputing concepts. This knowledge module has a twofold objective.
Bhanja, S., Srivastava, S.
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, 2020 The latest trends in the digital design circuits are based on Quantum Dot based structures. The Quantum-dot Cellular automata is paradigm in the area of Nano chip design in terms of their size and low power, which plays a significant role in the Nano ...
B. S. Kalyan, Balwinder Singh
semanticscholar +1 more source