As of my recent posts on quantum computing (QC), superconducting QC is the leading technology contender, exemplified in systems from IBM, Google, and Fujitsu. Other technologies such as ion trap, neutral atom, photonic and quantum dot have generally been viewed as intriguing but second tier. I just read a very recent paper suggesting… Read More
I have written earlier in this series that quantum error correction (QEC), a concept parallel to ECC in classical computing, is a gating factor for production quantum computing (QC). Errors in QC accumulate much faster than in classical systems, requiring QEC methods that can fix errors fast enough to permit production applications.… Read More
R&D for any fundamentally new technology takes time, especially for hardware; over 10 years passed from the first transistor to the first (very small) integrated circuit. The engineering behind quantum computers is arguably even more challenging than for electronic circuits, at least from today’s perspective. We shouldn’t… Read More
