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

Scientists Propose Quantum Network to Finally Detect Universe’s Mysterious Missing Substance

Researchers at Tohoku University have shown that linking quantum sensors in optimized networks can dramatically boost their sensitivity. Uncovering dark matter, the invisible substance thought to bind galaxies together, remains one of the greatest mysteries in physics. While it cannot be directly

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