Future Quantum Computers: From Challenges to Realization

Continued from Quantum Computers: Problem Solving and Challenges

More challenges lay at the basis of creating the world’s first quantum computer. Given the qubits’ – information carriers in the quantum network – entanglement and that the addition of one single qubit to the analysis magnifies dramatically the size of the math problem it is unlikely to continue using even the most powerful classical computers for further development of the quantum computer.

Therefore, the scientists from Kavli Institute are thinking of using simulators to test the emerging computer system. The simulators have to be quantum because only a quantum simulator would have the ability to run such a program. The software would execute on a basic quantum computer while simulating the quantum physics for a more complex quantum computer. At present, throughout the world there are different developments targeted to produce a quantum software simulation on a quantum computer. It would help to analyze how complex quantum computers behave, those which would contain hundreds of thousands of qubits with their behavior and interconnections.

The tech giants Microsoft, IBM, Intel, and Google are investing in this breakthrough technology because the demand for more performing computers is on the rise in various fields: chemistry and materials science, finance, pharmaceuticals, cybersecurity, quantum physics. What are the predictions related to the timeframe quantum computer unfolds to the world? This depends on different factors some of which would include:

  • Achieving complexity related to the number of qubits and the progress in understanding their behavior
  • Understanding that this unique, fascinating and in the same time peculiar development represents a gradual process where progress may manifest in incremental steps
  • Acquiring knowledge of controlling, managing and influencing the qubits, critical components of the quantum computer and consequently performing adequate applications for the desired results.

The above factors constitute general points considered at this time crucial to successfully build the world’s first quantum computer. A more specific one consists of the researchers’ perception that a computer which does one thing well is needed. So far, the software run on 50-qubits chip – 50 quantum bits in a chip – would equal in power a classical supercomputer and this can only show that quantum works, it does not solve a real industry problem. As such starting the creation of a one task quantum computer seems a feasible idea showing sustainable support from current sponsors and future users.

Cory Popescu