This tiny detector, thinner than a human hair, could accelerate the development of quantum technologies.
A team led by Professor Jonathan Matthews has taken the first step towards miniaturizing a quantum computer. In 2021, they increased the speed of quantum light detection by combining photonic and electronic chips.
They have now integrated both components on a single chip, increasing the detection speed by 10 times and reducing the size by 50 times.
The quantum light detector on the chip measures 80 x 220 micrometers. This detector, known as a homodyne detector, operates at room temperature and is used in highly sensitive sensors.
The advantage of a smaller detector is fast detection of quantum light, which increases the speed of the quantum computer.
However, smaller sensors are sensitive to noise. The researchers proved that reducing the size of the detector does not affect its sensitivity in measuring quantum states.
Source: Ferra
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