This article discusses research by NIST into quantum memory, a key component for quantum information systems. The goal is to store quantum states for extended periods while other quantum operations take place. While photonic qubits are good for transmitting quantum information, they are not ideal for storage. Instead, researchers are exploring matter-based qubits, specifically nuclear hyperfine states of Praseodymium ions embedded in a crystal. These states can hold quantum information for tens of seconds, making them promising for long-term storage.
NIST is using optical beams to prepare these ions in the best possible states for storage, and early results are encouraging. This work could lead to more reliable quantum memory systems, which are essential for future quantum computing and communication technologies. The research is still in progress, with ongoing efforts to improve performance and stability.
Source: https://www.nist.gov/programs-projects/memory
Keywords: quantum state storage, nuclear hyperfine states, Praseodymium ions
