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Information flow in non-unitary quantum cellular automata
SciPost PhysicsThe 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
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Quantum Features of Natural Cellular Automata [PDF]
Journal of Physics: Conference Series, 2016 Cellular automata can show well known features of quantum mechanics, such as a linear rule according to which they evolve and which resembles a discretized version of the Schroedinger equation. This includes corresponding conservation laws. The class of "natural" Hamiltonian cellular automata is based exclusively on integer-valued variables and ...
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Advanced Functional Materials, EarlyView.Applying a high electric field to a doped organic semiconductor heats up the charge carrier distribution beyond the lattice temperature, enhancing conductivity. It is shown that the associated effective temperature can be used to extract the effective localization length, which is a characteristic length scale of charge transport and provides ...
Morteza Shokrani +4 more
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Advanced Functional Materials, EarlyView.Quantum sensing reveals intricate patterns linking endo‐lysosomal maturation to cardiac fibrosis progression, highlighting complexity in cellular remodeling. This study investigates fibroblast‐to‐myofibroblast transition under cell aging, stiffness, and TGF‐β stimulation, comparing nanodiamond uptake, endo‐lysosomal dynamics, and free radical ...
Aldona Mzyk +3 more
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Quantum logic automata generalizing the edge of chaos in complex systems
Frontiers in Complex SystemsBackgroundHistorically, 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
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Universal shift register implementation using quantum dot cellular automata
Ain 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
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An overview of quantum cellular automata [PDF]
Natural Computing, 2019 23 pages, 5 figures.
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Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
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Two Novel Quantum-Dot Cellular Automata Full Adders
Journal 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
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Quantum-dot devices and Quantum-dot Cellular Automata
Journal of the Franklin Institute, 1997 We discuss novel nanoelectronic architecture paradigms based on cells composed of coupled quantum-dots. Boolean logic functions may be implemented in specific arrays of cells representing binary information, the so-called Quantum-Dot Cellular Automata (QCA).
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