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Quantum Computing Breaks the NISQ Barrier with Zero-Error Experiments

Quantum Computing Breaks the NISQ Barrier with Zero-Error Experiments
Quantum Computing Breaks the NISQ Barrier with Zero-Error Experiments

Advancements in Quantum Computing: Breaking the NISQ Barrier

A significant breakthrough in quantum computing has been announced by Microsoft and Quantinuum. Utilizing Quantinuum's ion-trap hardware and Microsoft's qubit-virtualization system, they successfully conducted over 14,000 experiments with zero errors. This innovative system enables error checking and correction without compromising the logical qubits.

The End of the NISQ Era

The "Noisy Intermediate Scale Quantum (NISQ)" era refers to the limitations of current quantum computers, which experience environmental noise that can lead to decoherence and unreliable results. The new error correction system has pushed quantum computing beyond this barrier.

Combining Physical and Logical Qubits

The team combined 30 physical qubits into four highly reliable logical qubits, which are less susceptible to errors. This technique involves entangling physical qubits to detect and correct errors.

Active Syndrome Extraction

A crucial aspect of this advancement is "active syndrome extraction," the ability to diagnose and correct errors without destroying logical qubits. This marks a significant milestone in quantum error correction, enabling reliable quantum computing.

Implications for the Industry

If these results are replicated, it could indicate the beginning of a "stable era" in quantum computing, where logical error rates are significantly lower than physical error rates. This could lead to quantum computers with as few as 100 logical qubits being useful for solving practical problems.

Next Steps for Quantum Computing

The research team acknowledges the need for further advancements to fully overcome NISQ limitations, such as improved individual circuit error correction and entanglement generation between multiple logical qubits. However, the results achieved by Microsoft and Quantinuum represent a promising step towards robust and scalable quantum computing systems.

Collaboration and Replication

The quantum community is now tasked with replicating these results and developing similar error correction systems. This collaboration is essential for validating the findings and accelerating the progress of quantum computing.

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