Quantum light is essential for future tech like unhackable internet and quantum imaging. Researchers in Slovenia developed a new method using liquid crystals to create quantum light, a significant advancement after decades of stagnation in the field.
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https://www.newscientist.com/article/2435010-liquid-crystals-could-improve-quantum-communication-devices/
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Liquid crystals could improve quantum communication devices
Quantum light is key to futuristic quantum technologies, but researchers have been creating it in the same way for 60 years – now liquid crystals offer an easier way to produce it
New Scientist