At this moment, the world can control a quantum computer just at a theoretical level. It was never created such a mechanism before. However, with the new technology the world now enjoys, scientists are ready to unlock the potential of such a concept. This kind of computer would be a faster solution to modern problems. People will be able to create faster pharmaceutical drugs or decode secret encryptions.
The computers on the market use a binary system where a bit can have two phases on or off. In comparison, a quantum computer replaces bits with quantum bits, also known as qubits. Such upgraded bits can exist as either on or off but also as both on and off. Such a stage is called a superposition, and the computer uses probabilities to come up with answers.
As of recently, scientists discovered a new blueprint for a quantum computer which is the simplest one in this sector. The lead author of this document is the director of the Ion Quantum Technology Group from the University of Sussex, Winfried Hensinger. He describes the piece of technology as a system of junctions that can keep under control ions which are charged atoms. One qubit would have a 3.5-inch capsule of its own which in its turn has 1,296 junctions. The capsules can be put together to create a system with as many qubits as needed.
Since a qubit can experience a multitude of states at the same time, the quantum computer will be able to operate a variety of calculations in parallel. However, the presence of superposition makes such equipment difficult to build. They have to enjoy the freedom of space. If they collide with an object or even extreme temperatures, the ions will no longer be able to carry tasks simultaneously.
The newly created design can tackle such issues with the use of magnetic fields and microwaves. The new computer will have a magnetic field that can keep ions under control. Thanks to a system of thousands of junctions, such a project has just become a possibility. Winfried Hensinger talks about a quantum computer with thousands of modules. One such module has to have 2.2 million junctions which would cover an area of 14 feet. As a consequence, the equipment will need a space of the size of a football field.
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