Nuclear-spin swap extends room-temperature entanglement lifetime up to 240-fold

Researchers at the University of Science and Technology of China in Hefei transferred entangled states from electron spins of solid-state defects to surrounding atomic nuclei, which are more resistant to noise. The technique extended entanglement lifetime at room temperature by up to a factor of 240. The work was published in Physical Review Letters.

• Entanglement was transferred from electron spins to nuclear spins
• Lifetime increased up to 240-fold at room temperature
• The system is solid-state and needs no cryogenic cooling
• Results published in Physical Review Letters