Scientists Show Microwave-Optical Entanglement via Mechanical Interface

Using lasers, researchers at the Neils Bohr Institute at the University of Copenhagen have developed a way to entangle electromagnetic fields from microwave radiation and optical beams. Creating entanglement between microwave and optical fields could help scientists solve the challenge of sharing entanglement between two distant quantum computers operating in the microwave regime. According to the researchers, one of today’s most advanced quantum systems is based on superconducting circuits, which work in the microwave regime. However, connecting these computers to provide a quantum network is challenging because microwaves can’t propagate far without loss, which is harmful to quantum computing tasks. One way to...