How would you feel when the one thing that separates humans from machines is drawn out. Feverish? Happy? Weird? Yes, this new generation quantum computer will do the irreversible. It has got a conscience. It can self-check for errors and suppresses them without human invigilation.A team of quantum physicists in Martinis Lab have come to a step closer to creating the circuitry that would allow them to process supercomputing done by quantum computers. The revolution is promised by the new quantum bits (qubits) compared to the previously done classical computing. Qubits infuse the system with high levels of reliability and speed, thus building foundations for large scale superconducting quantum computers.
Till now computing has been done by classical methods in which the bits were either in states 0 or 1, but qubits exist at all the positions simultaneously, in different dimensions. This special property of being omnipresent is called ‘superpositioning’. However, one of the difficulties is keeping the qubits stable to reproduce the same result each time. This superpositioning characteristic makes qubits prone to ‘flipping’, therefore making it difficult to work with.
Julian Kelly, a graduate student researcher and co-lead author of a research paper that was published in the journal Nature said:
It’s hard to process information if it disappears.
Quantum error detection and correction happens because of its usage of parity information i.e. measuring the data change from original one whereas Classical computing uses duplication of data for error detection. That means we have to extract information without destroying quantum nature of qubits. The hurdle that comes in processing the information is that the quantum state cannot be measured. It would lock the qubit, forcing it into a specific state and thus losing its superpositioning power.
Fowler, the research scientist, said:
This is the first time a quantum device has been built that is capable of correcting its own errors
The kind of complex calculations that are expected from these quantum computers, the number around a hundred million qubits would be required.
Merging the quantum mechanics with latest computing technology will bring out a new era of computing prowess. When a full quantum computer would be developed, the world of computing will undergo a revolution of sophistication, speed, and energy efficiency that would make our current technology seem like a medieval chunk of machinery.
Are quantum computers going to change the world of computing? Comment down your views!