Preskill’s has made major contributions to quantum computing including the concept of Noisy Intermediate-Scale Quantum” (NISQ) technology. This term describes the current state of quantum computers, which, despite not being fully error-corrected or fault-tolerant, can perform tasks beyond the capabilities of classical machines. The NISQ concept has revolutionized the approach to quantum computing, opening new …
Google Quantum AI has just proven, beyond any reasonable doubt, that Fault-Tolerant Quantum Computing is possible. For the first time ever, a logical qubit meets all criteria, demonstrating that Quantum Error Correction is effective. Here is the link to the research paper. Many challenges remain. Although Google might in principle achieve low logical error rates …
Quantum computers leverage some aspects of quantum physics to make computers. They can create huge amounts of quantum states but it is also difficult to make the actual algorithms to use the abundant states. A classical (regular) computer would need more atoms than are in the entire universe to match the number of quantum stats …
IBM has a new quantum computing roadmap out to 2033 but the critical turning point is around 2029 when IBM goes from error mitigation to error correction. Quantum error suppression and error mitigation is making a substantial difference now as is shown by peer reviewed work by Q-CTRL. The IBM projections seem to be guiding …