Toward Quaternary QCA: Novel Majority and XOR Fuzzy Gates

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 this cell. instability basic gates, cannot be placed one layer. The first layer proposed two-layer includes ternary and second binary It assumed overall polarization (QQCA) determined combined layers. QQCA can also implemented Simulations are performed based on analytical calculations. majority gate, XOR crossbar structure simulated.