Towards more PISQ-based methodology

QBee, founded by a number of academic researchers, has been advocating for almost 2 years that quantum computing research also needs to focus much more at the quantum application side. The main reason is that classical hardware will not disappear but that the compute power is coming to a halt. The main reason is the size of the CMOS-transistors, which is reaching 2nm. Once it goes below the 1nm size, we are entering the quantum mechanical way of phenomena such as superposition.

This is why we wrote a paper, almost 2,5 years ago, where we introduced and defined the PISQ-line of reasoning. PISQ stands for Perfect (qubit) Intermediate Scale Quantum, where a perfect qubit was defined in the beginning of the QC-research era. Perfect qubits are virtual concepts that do not decohere and always produce correct quantum results.

It is becoming more and more visible as well as urgent that all scientific fields need to start adopting this approach. Again, classical computer chips cannot disappear. We cannot imagine the world without any classical computer chip but many problems require the computer power of quantum chips.

It may take another 10 to 15 years before the qubit-research community agrees on one or two approaches for qubit-production, but we also need to be able to compute solutions for algorithms looking at the very big problems, such as chemical processes, climate changes, etc. This is therefore an invitation to all researchers world-wide !

An interesting overview of the challenges the QC-world has to solve, was recently published by journalist, J. Krupansky, and he does mention PISQ. Here is the link for his overview.

If you want to read our original PISQ paper, go to Quantum Computing — from NISQ to PISQ on https://arxiv.org/abs/2106.11840. We are in the process of writing a new one with concrete examples of how to start doing this new kind of research in established disciplines. We just need to be aware that quantum computing logic (QC Logic) is completely different from any classical way of reasoning about the world.

There are two main consequences of our approach. The first is that universities need to start introducing QC Logic in their MSc and PhD education and research. The second one is that it is also very important for companies to start doing that kind of research together with universities.