Quantum technologies depend on a process that remains surprisingly unreliable: transferring a single photon between two quantum bits, or qubits. With conventional methods, the receiving qubit successfully absorbs the photon only about 54 percent of the time. This inefficiency creates a major obstacle for quantum computers, secure quantum communication, and future quantum networks.
Researchers at TU Wien have proposed a way to overcome this limitation by changing the shape of a photon’s wave as it travels between qubits. Their calculations and computer simulations suggest that the method could achieve 100 percent absorption under ideal conditions.
To read more, click here.