arXiv:1905.07240quant-ph
Quantum Computing: An Overview Across the System Stack
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Abstract
Quantum computers, if fully realized, promise to be a revolutionary technology. As a result, quantum computing has become one of the hottest areas of research in the last few years. Much effort is being applied at all levels of the system stack, from the creation of quantum algorithms to the development of hardware devices. The quantum age appears to be arriving sooner rather than later as commercially useful small-to-medium sized machines have already been built. However, full-scale quantum computers, and the full-scale algorithms they would perform, remain out of reach for now. It is currently uncertain how the first such computer will be built. Many different technologies are competing to be the first scalable quantum computer.
Sure, in theory, in practice there's all sort of physical constraints on the hardware that add/depend on each other and whose complexity "grows" (I'm abusing the term, I know) much faster than linear, hence why I used the term exponential. "Quantum mechanical states are…
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