Quantum dot cellular automata (QDCA, sometimes referred to simply as quantum cellular automata, or QCA) are a proposed improvement on conventional computer design (CMOS), which have been devised in analogy to conventional models of cellular automata introduced by John von Neumann.

A quantum cellular automaton (QCA) is an abstract model of quantum computation, devised in analogy to conventional models of cellular automata introduced by John von Neumann.

2022年6月1日 · QCA cells are the elementary units in circuits based on QCA. A basic QCA cell consists of 4 quantum-dots which are located at corner of a square structure which are considered as four vacancies or possible locations for the electrons to take, as shown in Fig. 2 .

Abstract: QCA (Quantum-Dot Cellular Automata) is an emerging nanotechnology that has the potential to replace current CMOS technologies. QCA permits extremely low power consumption, since its working principle is not based on electric current flow but on Coulomb interaction.

2021年12月1日 · Quantum-dot Cellular Automata (QCA) is developed as an effective substitute for CMOS technology at a nanoscale level in the coming days. As the latest technique, vulnerable for a variety of forms of mistakes associated with manufacturing. QCA circuits are therefore vulnerable to errors and thus face major reliability-related problems.

2014年12月1日 · Quantum Cellular Automata (QCA) is new nanotechnology which recently has become one of the top six emerging technologies with the potential for applying in building future...

2024年1月2日 · Quantum-Dot Cellular Automata (QCA) is a promising technology for designing high-performance and efficient logic circuits, surpassing traditional Complementary...

2024年7月13日 · Quantum-dot cellular automata (QCA) is an emerging transistor-less field-coupled nanocomputing (FCN) approach to ultra-scale ‘nanochip’ integration. In QCA, to represent digital circuitry, electrostatic repulsion between electrons and the mechanism of electron tunnelling in quantum dots are used.

2018年6月13日 · One of these concepts—quantum-dot cellular automata (QCA), which is one of the new emerging nanotechnologies, is based on Coulomb repulsion. This chapter presents a novel design of 2-input Exclusive-NOR (XNOR)/Exclusive-OR (XOR) gates with 3-input Exclusive-NOR (XNOR) gates which are composed of 10 cells on 0.006 μm2 of area.

2021年1月28日 · Quantum-dot cellular automata (QCA) is gaining worldwide popularity due to its higher device concentration, lower power indulgence, and better switching speed. The information flows in QCA with the polarization state defined by the …