Probing the Quantum Void: How Squeezed Light Outperforms Classical Photons in Revealing Vacuum Non-Linearity
A team of theoretical physicists has demonstrated that replacing traditional vacuum inputs with engineered quantum states of light can enhance our ability to measure the non-linear properties of empty space. By injecting non-classical photon states—specifically squeezed states—into empty optical modes, researchers proved that the subtle quantum signatures of the void can be detected with unprecedented … Read more