Reversible logic is one of the most important issues at present time and it has different areas for its application. The main purposes of designing reversible logic are to decrease quantum cost, depth of the circuits and the number of garbage outputs. A new reversible gate COG is proposed in this paper. This paper also represents an ease implementation of 4 –bit arithmetic circuit for 8 operation by using the reversible COG gate .
Reversible logic is one of the most important issues at present time and it has different areas for its application. The main purposes of designing reversible logic are to decrease quantum cost, depth of the circuits and the number of garbage outputs. A new reversible gate COG is proposed in this paper. This paper also represents an ease implementation of 4 –bit arithmetic circuit for 8 operation by using the reversible COG gate .
Abstract — Reversible logic is one of the most vital issue at present time and it has different areas for its application, those are low power CMOS, quantum computing, nanotechnology, cryptography, optical computing, DNA computing, digital signal processing (DSP), quantum dot cellular automata, communication, computer graphics. It is not possible to realize quantum computing without implementation of reversible logic. The main purposes of designing reversible logic are to decrease quantum cost, depth of the circuits and the number of garbage outputs. This paper provides the basic reversible logic gates, which in designing of more complex system having reversible circuits as a primitive component and which can execute more complicated operations using quantum computers. The reversible circuits form the basic building block of quantum computers as all quantum operations are reversible. This paper presents the data relating to the primitive reversible gates which are available in literature and helps researches in designing higher complex computing circuits using reversible gates.
Abstract — Reversible logic is one of the most important issue at present time and it has different areas for its application. The main purposes of designing reversible logic are to decrease quantum cost, depth of the circuits and the number of garbage outputs This paper represents an another approach to realize 4 bit 2’s complement adder subtractor by using reversible logic gates like Feynman Gate, DKG gate and one control line. A also a new reversible gate DKFG is proposed. Keywords—Reversible logic, Basic Reversible Gates, 2’s Complement, Reversible full adder, Reversible full sub-
In this paper the authors have proposed a new 3×3 reversible gate and also proposed the reversible combinational logic circuits with better optimized quantum cost, garbage outputs and delay.The proposed new reversible logic gate is used to design of reversible 1-bit comparator circuit and realization of different logic functions such as NOT, AND, NAND, OR, NOR, XOR, NXOR.The proposed new reversible logic gate is represented by quantum implementation.The quantum cost of proposed gate is 4. The quantum cost, garbage output and delay of proposed reversible 1-bit comparator circuit are 6 which is better w. r. t. previously reported results.
Today, reversible logic circuits has attracted considerable attention in improving some fields like nanotechnology, quantum computing, and low power design. In this paper 4 bit reversible comparator based on classical logic circuit is represented which uses existing reversible gates. In this design we try to reduce optimization parameters like number of constant inputs, garbage outputs, and quantum cost. The results show that, the proposed comparator has 4 quantum cost and one constant input less than the prior design. 1
In recent years, reversible logic circuits have applications in the emerging field of digital signal processing, optical information processing, quantum computing and nano technology. Reversibility plays an important role when computations with minimal energy dissipation are considered. The main purpose of designing reversible logic is to decrease the number of reversible gates, garbage outputs, constant inputs, quantum cost, area, power, delay and hardware complexity of the reversible circuits. This paper reveals a comparative review on various reversible logic gates. This paper provides some reversible logic gates, which can be used in designing more complex systems having reversible circuits and can execute more complicated operations using quantum computers. Future digital technology will use reversible logic gates in order to reduce the power consumption and propagation delay as it effectively provides negligible loss of information in the circuit. Keywords: Garbage output, Power dissipation, quantum cost, Reversible Gate, Reversible logic,
This paper presents a novel design of sequential division circuit using reversible logic, which is a promising research area nowadays. The proposed hardware has its application in the design of reversible arithmetic logic unit. In order to show the efficiency, lower bounds of the proposed design are shown in terms of number of gates required, garbage outputs produced and quantum cost needed. As far as it is known, this is the first attempt to apply reversible logic to implement division hardware. As the works in the field of reversible logic has only started to bloom, the contribution of this paper will engender a new thread of research in the field of reversible division circuit.