Optical Quantum Memory Designed

“…Researchers at NASA’s Jet Propulsion Laboratory have designed an optical quantum device capable of storing photonic qubits.

The researchers’ quantum transponder design calls for encoding pairs of quantum bits in sets of four photons in such a way that the two qubits can be read even if one of the four photons is lost. Qubits would be sent into a fiber loop and a simple quantum computer would correct for errors caused by photons being absorbed by the fiber. The design includes a device to generate single photons to replace lost photons.”