Quantum databases: Trends and challenges

Quantum computing field is evolving rapidly these days. The difference between this new field and the classical field is the extension of the main domain from just using two bits (0, 1) to a complete space which is the result of the superposition of the same mentioned bits. By applying the superposition property in the quantum algorithms, this ensures that the system is more secured than the classical one and gives the quantum algorithms the advantage of breaking the classical ones. Databases, like any other system, require security due to the fact that it contains massive amounts of information that needs to be accessed only by the right user. The following survey will take a more in depth look into quantum databases.