** What is quantum computer**

Quantum computing is a form of computing that uses Qubits (bits on normal computers) to perform complex calculations or calculations that previously took thousands of years to perform in seconds.

Large companies like Google, IBM, Microsoft and Airbus are investing heavily in this technology. From finding cures for rare diseases, to fighter jet designs, to market forecasts

Despite the highest level of interest, the continuity of the Quantum project still does not see any major developments.

**How does the quantum computer work?**

On a normal computer, it uses Bits (0 and 10) to process data. So for example 4 bits on a line, this can be described as follows:

But unlike a quantum computer, it uses Qubits (0 and 1 at the same time). If for example Bits are only denoted by 0 and 1 separately, Qubits can represent both simultaneously. So 0 = 1 = 0.

At first glance, this seems confusing, but it is actually easy. For example, suppose you currently want to hack your friend's account password, which is exactly the same as the list of bits above.

If done on a regular computer, you have to enter everything one by one until you find the right combination of passwords.

Whereas on a Quantum computer that uses Qubits (0 and 1 at the same time), just insert 4 digits and the computer will automatically look for the right combination.

However, later results can mean true and false, as quantum computing displays both right and wrong answers. To eliminate incorrect answers, the Grover operator technique is used.

**Grover Operator**

Grover Operator is an **algorithm** on Quantum computers that is used to get rid of incorrect calculation results and leave only the good ones.

This is the advantage of quantum computers. Instead of trying all possible passwords one by one, quantum computers try them all at once and determine which one is correct.

As a result, calculations that take a very long time to find the answer, with Quantum only take a short time.

**Potential of the quantum computer for the world**

If quantum computers are developed further, it is clear that the current technology will be very useful in finding solutions to problems in an industry.

For example, for medical companies, quantum computers can speed up the process of finding new drugs for certain rare diseases, new business strategies, optimizing transportation routes for logistics companies, and many more.

According to data from tractica, although the Quantum market is still relatively new, the total market revenue is expected to increase over the next few years, from USD 39.2 million in 2017 to USD 2.2 billion per year in 2025.

Market Intelligence predicts that North America will be the top region for adoption of quantum computing systems with revenue of $718.3 million by 2025, followed by Europe ($695.8 million) and Asia-Pacific ($650.9 million).

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