The miniaturization of quantum computers is a topic of active research and development. While it is challenging to predict the exact timeline, there is ongoing progress in shrinking the size of quantum computing systems.
Currently, most quantum computers are large-scale and require specialized infrastructure, such as extremely low temperatures and precise control mechanisms. These requirements make it difficult to miniaturize quantum computers to the size of a typical personal computer (PC).
However, researchers are exploring various approaches to make quantum computers more compact and practical. One promising direction is the development of solid-state or semiconductor-based quantum technologies, which could potentially enable the integration of quantum components into existing electronic devices.
Another approach being pursued is the development of topological quantum computers, which are expected to be more robust against environmental noise and require fewer control mechanisms. Topological quantum computers have the potential to be more scalable and amenable to miniaturization.
It's worth noting that even if quantum computers are miniaturized to the size of a PC, they will likely still require specialized cooling and control systems to maintain the necessary operating conditions. Additionally, the size and complexity of quantum algorithms and applications will influence the overall system requirements.
While there is ongoing progress in miniaturizing quantum computers, it may take some time before they reach the level of practicality and integration into everyday devices that we associate with personal computers.