Alice & Bob’s cat qubits have overcome a major hurdle in quantum computing by remaining stable for over an hour. This milestone lengthens bit-flip times and points toward a more fault-tolerant future for quantum devices.
Quantum cat qubits stay stable for over an hour, smashing previous record

Key Takeaways:
- Cat qubits remained stable for more than an hour, setting a new record
- These qubits could reduce errors in quantum calculations
- Alice & Bob, a quantum tech firm, achieved the breakthrough
- Longer stability times accelerate progress toward fault-tolerant systems
A Record-Breaking Achievement
Quantum cat qubits have crossed a remarkable threshold, staying stable for over an hour and effectively smashing the previous record. This development holds great significance for quantum computing, an emerging field that relies on maintaining the delicate states of qubits to perform complex computations at unprecedented speeds.
Understanding the Importance of Bit-Flip Times
Bit-flip rates measure how resistant qubits are to errors—a crucial factor in quantum computing. By achieving a full hour of stability, these cat qubits showcase an impressive ability to maintain coherence and reduce operational errors that have historically presented major hurdles in quantum hardware.
Alice & Bob’s Role in Advancing Quantum Tech
According to the news feed, this breakthrough comes from a quantum computing company known as Alice & Bob. Their cat qubits, named after the famous thought experiment involving Schrödinger’s cat, appear to be a pivotal step forward in creating error-resistant quantum systems that can handle more ambitious computational tasks.
Implications for Fault-Tolerant Quantum Computing
At the heart of quantum computing’s future is the concept of fault tolerance—ensuring that qubits can handle minor disruptions without sacrificing data accuracy. With cat qubits offering hour-long bit-flip times, researchers and industry experts are hopeful this could be a major leap toward building practical machines capable of solving real-world problems with minimal errors.
Looking Ahead
This milestone, covered by Interesting Engineering, highlights the growing importance of quantum technology breakthroughs. By extending the endurance of qubits, Alice & Bob’s achievement paves the way for further research into next-generation hardware that can shape the future of computing. As the quantum revolution picks up speed, these stable cat qubits stand out as a promising advance on the road to fault-tolerant quantum devices.