An Extended Review on Reversible Logic Gates and Their Implementation

Abstract : In recent years, reversible logic circuits have applications in the emerging field of digital signal 
processing, computer graphics and cryptography.  They are also a fundamental requirement in the  field of 
quantum computation. We have investigated that the purposes of designing reversible logic are 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 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. The reversible circuits form the basic building blocks of quantum computers as all quantum 
operations are inherently reversible. This paper presents the data relating to the reversible gates which helps in 
designing complex circuits.