Researchers at the University of Technology Sydney have discovered that simply twisting stacked layers of ultra-thin hexagonal boron nitride provides precise control over quantum light emitters. By adjusting the rotation between the layers, the team can tune these tiny light-producing defects, a breakthrough that could accelerate the development of quantum computing, secure communications, and highly sensitive quantum sensors.

Figure 1. Twisting Layers Controls Quantum Light.

Twisting Layers Controls Quantum Light

Researchers say one of the biggest hurdles has been turning quantum light emitters into practical technologies. In the study, the team achieved significant changes in the color and wavelength of emitted light by repeatedly lifting, rotating, and restacking layers of hexagonal boron nitride. Unlike traditional materials such as diamond or silicon carbide, the layered structure of hBN allows its twist angle to be adjusted, giving scientists a flexible new way to fine-tune quantum light emitters. Figure 1 shows Twisting Layers Controls Quantum Light.

The Unique Properties of Hexagonal Boron Nitride

Researchers say the layered, twistable structure of hexagonal boron nitride offers far greater control over quantum light emitters than conventional solid-state materials. By exploiting this unique property, the team achieved a much larger shift in light emission than expected, demonstrating that hBN's flexible layered design can be used to precisely tune quantum light without relying on traditional approaches.

To explain the concept, the researchers compare hexagonal boron nitride to sliced cheese rather than a solid block. Just as individual cheese slices can be separated and restacked, the material's thin layers can be peeled apart, rotated, and reassembled, allowing scientists to change how the layers interact and precisely control its quantum light properties.

Advancing the Future of Quantum Technologies

Researchers say twisting layered materials can create entirely new physical properties that do not exist in the individual layers alone [1]. This enhanced control over quantum materials could help advance quantum computing, secure communications, and quantum sensing, with potential applications in healthcare, cybersecurity, navigation, and other technologies that rely on practical quantum devices.

References:

1. https://scitechdaily.com/a-simple-twist-gives-scientists-new-control-over-quantum-light/

Cite this article:

Janani R (2026), Scientists Gain New Control Over Quantum Light, AnaTechMaz, pp.544.