Physicists have improved the sensitivity of the gravitational wave detector

The researchers explained that gravitational wave detectors have allowed the universe to be studied in a new way -

for example, measuring ripple inspace-time arising from the collision of black holes and neutron stars. However, these devices are limited by quantum fluctuations caused by light reflected from mirrors. Therefore, scientists tried to improve the sensitivity of the detectors by removing these limitations.

They presented an experimental stand forstudying and eliminating noise from quantum feedback. The researchers carried out two measurements of the position of a macroscopic object dominated by quantum feedback and showed that by making a simple change to the circuit, they can remove quantum effects from the measurement of displacement. By using the correlations between the phase and the intensity of the optical field, the quantum feedback is eliminated.

Researchers have developed a method to create colloidal diamonds

Garrett Cole, company technology managerThorlabs Crystalline Solutions and his team have built micromechanical mirrors from an epitaxial multilayer layer. They were built into the device to check how much the detector became more sensitive to signals around.

“Taking this measurement on a visible mirrorWith the naked eye, at room temperature and at frequencies audible to the human ear, we bring the subtle effects of quantum mechanics closer to the realm of human experience, the researchers noted. "By making the noises quieter, we can now study more scientifically interesting notes of the cosmic symphony."

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