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Researchers Achieve Quantum Control of Silica Nanorotor

4/7/2026

Summary

Story summary

Researchers from multiple European institutes trapped a silica nanorotor in its quantum ground state, a major advance in quantum technology.
They used intense light to confine the nanorotor's orientation, achieving quantum-limited alignment and precise control of rotation.
The University of Vienna-led team cooled the nanorotor near absolute zero to detect minuscule torques.
The results, published in Nature Physics, point to quantum torque sensing and broader quantum-mechanics studies.

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Story summary

Researchers from multiple European institutes trapped a silica nanorotor in its quantum ground state, a major advance in quantum technology.
They used intense light to confine the nanorotor's orientation, achieving quantum-limited alignment and precise control of rotation.
The University of Vienna-led team cooled the nanorotor near absolute zero to detect minuscule torques.
The results, published in Nature Physics, point to quantum torque sensing and broader quantum-mechanics studies.