Catenaa, Tuesday, January 20, 2026- Researchers have developed a method to make qubits encode information up to five times longer by breaking a long-standing quantum limit known as the temporal Tsirelson’s bound (TTB).

The advance could improve quantum computing and precision sensing applications.

The team, led by Arijit Chatterjee at the Indian Institute of Science Education and Research in Pune, used a three-qubit system built from a carbon-based molecule.

By controlling a “target” qubit with a first qubit placed in a quantum superposition state and extracting its properties with a third qubit, they achieved one of the largest known violations of the TTB.

Superposition allows a qubit to simultaneously occupy multiple states, enabling the target qubit to maintain quantum correlations over time.

Normally, qubits lose their ability to store information due to decoherence.

In this experiment, breaking the TTB delayed decoherence, allowing the qubit to preserve its encoded information for five times longer than conventional methods.

The researchers note that this stability is critical for quantum computations that require precise control of qubit states.

Beyond computing, the technique could enhance quantum metrology, improving the accuracy of measurements in fields such as electromagnetic sensing.

Experts also emphasize the fundamental significance of the result, demonstrating that quantum objects can maintain extreme temporal correlations, challenging prior assumptions about the limits of quantumness.

The study underscores ongoing progress in controlling quantum systems, suggesting that future quantum technologies may benefit from more robust information encoding and longer operational lifetimes for qubits.