Researchers at Tohoku University have developed a method to detect dark matter by connecting quantum sensors in optimized networks, potentially solving one of physics’ greatest mysteries[^1]. The quantum network approach aims to boost sensor sensitivity to detect the faint traces dark matter may leave behind, though it cannot be directly observed[^2].

Dark matter remains elusive despite making up approximately 27% of the universe[^3]. This new detection strategy involves linking superconducting qubits - typically used in quantum computers - into various network configurations including ring, line, and star patterns to amplify weak signals[^3].

The team tested their approach using systems of four and nine qubits, applying “variational quantum metrology” to optimize how quantum states were prepared and measured[^3]. To improve accuracy, they used Bayesian estimation to filter out noise from the measurements[^3].

[^1]: Lifeboat - Scientists Propose Quantum Network to Finally Detect Universe’s Mysterious Missing Substance

[^2]: ScienceDaily - New quantum network could finally reveal dark matter

[^3]: Sciencesprings - From Tohoku University Via SciTechDaily: Scientists Propose Quantum Network to Finally Detect Universe’s Mysterious Missing Substance