Quantum-dot cellular automata (QCA), a computation paradigm based on the Coulomb interactions between neighboring cells. The key idea is to represent binary information, not by the state of a current switch (transistor), but rather by the configuration of charge in a bistable cell. In its molecular realization, the QCA cell can be a single molecule. QCA is ideally suited for molecular implement...

Quantum-dot Cellular Automata (QCA) technology is attractive due to its low power consumption, fast speed and small dimension, therefore, it is a promising alternative to CMOS technology. In QCA, configuration of charges plays the role which is played by current in CMOS. This replacement provides the significant advantages. Additionally, exclusive-or (XOR) gate is a useful building block in man...

Quantum-dot Cellular Automata (QCA) are an emerging computation technology in which basic states are represented by nanosize particles and logic operations are conducted through corresponding effects such as Coulomb interaction. This allows to overcome physical boundaries of conventional solutions such as CMOS and, hence, constitutes a promising direction for future computing devices. Despite t...

Quantum cellular automata (QCA) consist in an array of identical finite-dimensional quantum systems. The whole array evolves in discrete time steps by iterating a unitary operator G. Moreover this global evolution G is shift-invariant (acts everywhere the same), and local (information can only be transmitted at a bounded speed). Whilst this axiomatic definition is clearly the natural ‘quantizat...

Crossbar switch is the basic component in multi-stage interconnection networks. Therefore, this study was conducted to investigate performance of a crossbar with two multiplexers. The presented simulated using quantum-dot cellular automata (QCA) technology and QCA Designer software, studied optimized terms cell number, occupied area, number clocks, energy consumption. Using provided switch, bas...

Having a reliable simulation tool for evaluating the performance of each design is indispensable. Designing multiple-valued logic (MVL) systems help to overcome limitations existing in binary systems. Quantum-dot cellular automata (QCA) technology that can be substituted CMOS MVL designs. This paper represents an exquisite software platform designing and simulating circuits which are restricted...

Quantum-dot cellular automata (QCA) is a novel and potentially attractive technology for implementing computing architectures at the nano-scale. By applying a set of simple layout rules, arbitrary circuits can be made using QCA cells. In this work, we describe the design and layout of a QCA random access memory (RAM), showing the layout of individual memory cells, as well as, a suggested layout...

The most important mathematical operation for any computing system is addition. An efficient adder can be of greater assistance in designing of any arithmetic circuits. Quantum-dot Cellular Automata (QCA) is a promising nanotechnology to create electronic circuits for computing devices and suitable candidate for next generation of computing systems. The article presents a modest approach to imp...

The computation approach known as quantum-dot cellular automata (QCA) is based on encoding binary information in the charge configuration of quantum-dot cells. This paradigm provides a possible route to transistor-less electronics at the nano-scale. QCA devices using single-electron switching in metal-dot cells have been fabricated. Here we examine the limits of switching speed and temperature ...

Quantum-dot cellular automata (QCA) is an emerging technology proposed in response to the limitations of CMOS technology. Moreover, static RAM (SRAM) crucial for memory design, and efficient design can play a significant role. This paper proposes fault-tolerant QCA SRAM cell based on three- five-input majority gates. implemented single layer does not require any rotated cell, which significantl...