The limits and difficulties looked by CMOS innovation in the nano system has prompted exploration of other potential advancements which can work with same functionalities anyway lower power scattering higher speed. One such technology is Quantum dot Cellular Automata (QCA). In this paper, QCA explored to design authentication system. This paper first presents basic operating principle a Fingerp...

Different logic gates like MV, NOT, AOI, NNI etc under QCA nanotechnology are introduced. NNI gate is highly effective regarding space and speed consideration. Any Boolean functions are synthesized by MV and NNI gates or simply NNI gates alone, eliminating inverter (NOT) gate. A new method for realizing adder circuit in binary reversible logic is invented. This procedure synthesizes for a more ...

211 Abstract—-Different logic gates like MV, NOT, AOI, NNI etc under QCA nanotechnology are introduced. NNI gate is highly effective regarding space and speed consideration. Any Boolean functions, confined in thirteen number standard Boolean functions, are synthesized by MV and NNI gates or simply NNI gates alone, eliminating inverter (NOT) gate. A new method for realizing symmetric functions i...

by Géza Tóth In this thesis we investigate the role of correlation and coherence in two possible realizations of Quantum-dot Cellular Automata (QCA): realizations as a semiconductor multi-quantum-dot structure and as a metal-island single electron tunneling circuit. The two are different from the point of view of the underlying physics. The metal island circuits are very strongly connected to t...

This paper describes research on a novel design and simulation tool for quantum-dot cellular automata (QCA), which we refer to as QCADesigner. A typical design window is shown in Figure 1. QCADesigner facilitates rapid design of QCA circuits by implementing different simulation engines and many standard CAD capabilities [1][2]. The results of a simulation are displayed in graphs such as the one...

Integrated Circuit(IC) fabrication technology is improving, so the internal dimension of semiconductor devices are decreasing day by day. This trend of scaling down dimensions reached its limit in near future. In nanoscale design, Complementary Metal Oxide Semiconductor (CMOS) has certain limitations such as hot electron effect, interconnect crosstalk, power dissipation, operating speed, gate o...

As an emerging nanotechnology, quantum-dot cellular automata (QCA) has been considered alternative to CMOS technology that suffers from problems such as leakage current. Moreover, QCA is suitable for multi-valued logic due the simplicity of implementing fuzzy in a way much easier than technology. This paper uses quaternary cell with two isolated layers because requiring three particles design t...

Quantum-dot Cellular Automata (QCA) is one of the emerging nanotechnologies, promising alternative to CMOS technology due to faster speed, smaller size, lower power consumption, higher scale integration and higher switching frequency. Also, power dissipation is the main limitation of all the nano electronics design techniques including the QCA. Researchers have proposed the various mechanisms t...