Results 61 to 70 of about 42,518 (174)

Clock Topologies for Molecular Quantum-Dot Cellular Automata

open access: yesJournal of Low Power Electronics and Applications, 2018
Quantum-dot cellular automata (QCA) is a low-power, non-von-Neumann, general-purpose paradigm for classical computing using transistor-free logic. Here, classical bits are encoded on the charge configuration of individual computing primitives known as ...
Enrique Blair, Craig Lent
doaj   +1 more source

Exponentially Adiabatic Switching in Quantum-Dot Cellular Automata

open access: yesJournal of Low Power Electronics and Applications, 2018
We calculate the excess energy transferred into two-dot and three-dot quantum dot cellular automata systems during switching events. This is the energy that must eventually be dissipated as heat.
Subhash S. Pidaparthi, Craig S. Lent
doaj   +1 more source

Nanosensor Data Processor in Quantum-Dot Cellular Automata

open access: yesJournal of Nanotechnology, 2014
Quantum-dot cellular automata (QCA) is an attractive nanotechnology with the potential alterative to CMOS technology. QCA provides an interesting paradigm for faster speed, smaller size, and lower power consumption in comparison to transistor-based ...
Fenghui Yao   +4 more
doaj   +1 more source

Tensor-networks-based learning of probabilistic cellular automata dynamics

open access: yesPhysical Review Research
Algorithms developed to solve many-body quantum problems, like tensor networks, can turn into powerful quantum-inspired tools to tackle issues in the classical domain.
Heitor P. Casagrande   +4 more
doaj   +1 more source

Information flow in non-unitary quantum cellular automata

open access: yesSciPost Physics
The information flow in a quantum system is a fundamental feature of its dynamics. An important class of dynamics are quantum cellular automata (QCA), systems with discrete updates invariant in time and space, for which an index theory has been proposed ...
Elisabeth Wagner, Ramil Nigmatullin, Alexei Gilchrist, Gavin K. Brennen
doaj   +1 more source

Facilitated quantum cellular automata as simple models with non-thermal eigenstates and dynamics [PDF]

open access: yesQuantum Science and Technology, 2018
We introduce and describe a class of simple facilitated quantum spin models in which the dynamics is due to the repeated application of unitary gates. The gates are applied periodically in time, so their combined action constitutes a Floquet unitary. The
S. Gopalakrishnan, B. Zakirov
semanticscholar   +1 more source

Quantum logic automata generalizing the edge of chaos in complex systems

open access: yesFrontiers in Complex Systems
BackgroundHistorically, although researchers in the science of complex systems proposed the idea of the edge of chaos and/or self-organized criticality as the essential feature of complex organization, they were not able to generalize this concept ...
Yukio Pegio Gunji   +3 more
doaj   +1 more source

Two Novel Quantum-Dot Cellular Automata Full Adders

open access: yesJournal of Engineering, 2013
Quantum-dot cellular automata (QCA) is an efficient technology to create computing devices. QCA is a suitable candidate for the next generation of digital systems.
Mahdie Qanbari, Reza Sabbaghi-Nadooshan
doaj   +1 more source

Synchronization in Quantum-Dot Cellular Automata Circuits and Systems

open access: yesIEEE Open Journal of Nanotechnology, 2020
Signal synchronization of large scale Quantum-dot Cellular Automata (QCA) circuits is one of the most complex QCA design challenges. More specifically, the QCA circuits synchronization problem, especially in the large circuits, is characterized as rather
Orestis Liolis   +3 more
doaj   +1 more source

Universal shift register implementation using quantum dot cellular automata

open access: yesAin Shams Engineering Journal, 2018
Quantum-dot Cellular Automata (QCA) demands to be a promising alternative of CMOS in ultra large scale circuit integration. Arithmetic and logic unit designs using QCA are of high research interest. A layout of four and eight bit universal shift register
Tamoghna Purkayastha   +2 more
doaj   +1 more source

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