Tag

Error Mitigation

All articles tagged with #error mitigation

technology2 hours ago•110 min saved

IBM claims quantum advantage in three experiments, invites verification

IBM and partner teams report achieving quantum advantage in three experiments on its Quantum Heron R3 system, using quantum error mitigation to validate results against a classical supercomputer (Fugaku) and testing both Floquet Ising-model computations and Clifford/T-gate circuits; the results, posted as arXiv preprints, aim to establish a verifiable trust stack but require independent verification as classical challenges continue, underscoring that quantum advantage is still an early, contestable milestone.

via Live Science|

#error-mitigation #floquet-transverse-field-ising-model #ibm

technology1 day ago•10 min saved

Three routes toward verifiable quantum advantage on today's noisy hardware

IBM, with partners RIKEN and Qedma, highlights three approaches that demonstrate verifiable quantum advantage on imperfect quantum hardware: robust error mitigation and Floquet-Ising modeling; a Chicago–IBM method using mostly Clifford gates with targeted non-Clifford T gates plus peripheral qubits for error detection; and a quantum-echo–like protocol with controlled noise characterization to bound outcomes. While not yet practically useful, the work advances trustworthy quantum results and lays groundwork for future error-corrected machines and real-world applications.

via Ars Technica|

#error-mitigation #ibm #quantum-advantage

quantum-computing3 years ago•3 min saved

IBM's Quantum Computing Achievements: Error Mitigation and Superior Performance.

IBM researchers have used a technique called "error mitigation" to overcome the problems with today's quantum processors and produce an accurate result despite the noise in the system. They intentionally amplified and then measured the processor's noise at different levels to estimate a function that produces similar output as the actual measurements. This function can then have its noise set to zero to produce an estimate of what the processor would do without any noise at all. The researchers tested this system using an Ising model and found that it outperformed similar calculations on classical computers.

via Ars Technica|

#error-mitigation #ibm #ising-model

technology3 years ago•7 min saved

Quantum Computing's Error Mitigation Breakthroughs

Researchers at IBM Quantum and UC Berkeley have shown that error mitigation techniques can give quantum computers an edge over classical supercomputers in some common physics calculations. The team pitted a 127-qubit quantum computer against a state-of-the-art supercomputer and, for at least one type of calculation, bested the supercomputer. The calculation could be made increasingly complex to test whether today's noisy, error-prone quantum computers can produce accurate results for certain types of common calculations. The results provide hope that quantum computing algorithms with error mitigation could tackle cutting-edge physics problems.

via Phys.org|

#error-mitigation #ibm #quantum-computing

technology3 years ago•6 min saved

IBM Leads the Way in Quantum Computing Advancements

IBM researchers have developed a method to manage the unreliability of quantum computers, which could lead to reliable, useful answers. They used a quantum processor with 127 qubits to simulate the behavior of 127 atom-scale bar magnets in a magnetic field, a simple system known as the Ising model. The calculation took less than a thousandth of a second to complete, and the researchers were able to subtract the effects of noise from the unreliable quantum calculations, a process they call error mitigation. This could be used for increasingly complex problems beyond the Ising model, such as figuring out the properties of exotic materials, accelerating drug discovery, and modeling fusion reactions.

via The New York Times|

#error-mitigation #ibm #ising-model