Quantum computing is a type of computational theory that use the concept of quantum mechanics to perform calculations. Quantum mechanics, defines that an entity, can exist simultaneously in multiple states, and yet gives only one measurable quantity. This characteristic of quantum mechanics has been made use of, to perform complex mathematical calculations and a significantly faster rate than modern computers. Quantum coding, uses qubits, rather than bits, as individual structural elements of the quantum code. Quantum algorithms are written on different basic parameters: quantum Fourier Transform, amplitude amplification and quantum walks. The different quantum algorithms are: Deutsch-Jozsa algorithm, Simons algorithm, Shors algorithm, Hidden subgroup problem, Estimating Gauss sums, Fourier Fishing and Fourier Checking, Grovers algorithm, Quantum counting, Element distinctness problem, triangle-finding problem, formula evaluation and group commutativity. Journal Article is sometimes called a Scientific Article, a Peer-Reviewed Article, or a Scholarly Research Article. Together, journal articles in a particular field are often referred to as The Literature. Journal articles are most often Primary Research Articles. However, they can also be Review Articles. These types of articles have different aims and requirements. Sometimes, an article describes a new tool or method. Because articles in scientific journals are specific, meticulously cited and peer-reviewed, journal databases are the best place to look for information on previous research on your species. Without a background in the field, journal articles may be hard to understand - however, you do not need to understand an entire article to be able to get valuable information from it. Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results. Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications. The concept of "review article" is separate from the concept of peer-reviewed literature. It is possible for a review to be peer-reviewed, and it is possible for a review to be non-peer-reviewed.