Quantum Error Mitigation Shows Promise in Advancing Annealing Quantum Computing

D-Wave Quantum Inc. has made significant research strides in Quantum Error Mitigation (QEM) with its Advantage2 annealing quantum computing experimental prototype. By implementing techniques to reduce errors in quantum simulations, the researchers achieved results that maintained the quantum system’s coherence for an order of magnitude longer than an unmitigated system.

While Quantum Error Correction is considered the ultimate solution for eliminating errors in quantum computation, it currently comes with significant overhead, making it impractical with existing technology. In contrast, QEM provides a near-term solution for estimating error-free expectation values in the presence of small noise.

D-Wave’s latest research demonstrates the successful application of Zero-Noise Extrapolation (ZNE), one of the most practical QEM techniques, within its annealing quantum computing systems. By extending the coherence of the quantum system, the researchers pave the way for computation in previously inaccessible regimes, such as quantum simulations of exotic magnetic materials.

These advancements hold promise for the forthcoming Advantage2 system and future processors. The insights gained from this research will assist in determining design specifications for next-generation quantum processors, enabling improved performance.

Moreover, the results of this research have significant implications for customers tackling computationally complex problems in scientific and machine learning applications. By mitigating errors and improving the coherence of quantum systems, D-Wave’s advancements offer a pathway to overcoming the most significant obstacles in quantum computation.

D-Wave Quantum Inc. continues to make strides in the field of coherent annealing quantum computing. In addition to Quantum Error Mitigation, the company previously announced progress in the development of high coherence fluxonium qubits.

Frequently Asked Questions (FAQ)

Q: What is Quantum Error Mitigation (QEM)?

A: Quantum Error Mitigation (QEM) is a near-term solution for estimating error-free expectation values in quantum computation in the presence of small noise.

Q: What is Zero-Noise Extrapolation (ZNE)?

A: Zero-Noise Extrapolation (ZNE) is one of the most practical QEM techniques that mitigates errors in quantum annealing, resulting in improved coherence of the quantum system.

Q: How do errors impact quantum computation?

A: Errors in quantum computation, caused by environmental noise and hardware imperfections, can hamper the accuracy and reliability of calculations.

Q: How will Quantum Error Mitigation advancements benefit future processors?

A: Quantum Error Mitigation advancements will drive performance improvements in future quantum processors by reducing errors and extending the coherence of quantum systems.

Q: What are the potential applications of improved quantum coherence?

A: Improved quantum coherence opens up new possibilities for tackling highly computationally complex problems in scientific research and machine learning applications.

(Source: [Phys.org](https://phys.org/news/2023-11-quantum-error-mitigation-prototype-coherent.html))