Science & Tech · Science & Environment · 1 day ago
IBM quantum chip demonstrates repeated measurements and resets across 100 qubits
Quantum computers use fragile units called qubits, which can lose information as they work.
Researchers repeatedly measured and reset up to 100 qubits while other operations continued.
The experiment showed that these interventions can push the system from chaotic behavior toward a more controlled state.
This is a step toward correcting errors during long calculations, but it is not yet a fully fault-tolerant quantum computer.
Researchers used an IBM Quantum Heron processor to demonstrate repeated qubit measurements and resets while quantum operations continued.
The experiment used a connected chain of up to 100 qubits on a processor with 156 qubits.
Researchers carried out nearly 5,000 two-qubit operations and almost 5,000 measurement-and-reset cycles.
The team found a sharp shift from chaotic to controlled behavior near an even balance between information-scrambling and measurement-and-reset processes.
The work, published in Nature Physics, is a step toward error correction but does not demonstrate a fully fault-tolerant quantum computer.
- Who
- Researchers from Rutgers University, IBM, and collaborating institutions
- What
- A demonstration of repeated quantum measurements and qubit resets during ongoing operations
- When
- Published October 9, 2026
- Where
- On an IBM Quantum Heron processor
- Why
- To investigate how repeated interventions can control quantum behavior and support quantum error correction
This story does not have two clearly opposing sides.
an important step toward practical error correction
This story does not have a timeline yet.
- Processor
- IBM Quantum Heron, with 156 qubits
- Qubits used in experiment
- Up to 100 in a connected chain
- Two-qubit operations
- Nearly 5,000
- Measurement-and-reset cycles
- Almost 5,000
- Publication
- Nature Physics
Sources
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