AI Insight
Researchers at the University of Science and Technology of China have achieved a 240-fold extension in the lifetime of quantum entanglement at room temperature in solid-state systems. The team, led by Shuo Ren and Rui-Jian Liang, accomplished this by transferring entangled states from electron spins in solid-state defects to nearby atomic nuclear spins, which are significantly more resistant to environmental noise that typically destroys quantum states.
Why it matters
This breakthrough addresses one of the major challenges in quantum computing and quantum communication: maintaining quantum entanglement long enough to perform useful operations without requiring extreme cooling. Extending entanglement lifetimes at room temperature could lead to more practical and accessible quantum technologies for computing, secure communications, and sensing applications.
Understand the Science
Researchers in China have extended the lifetime of entanglement in a room-temperature, solid-state system by up to a factor of 240. Led by Shuo Ren and Rui-Jian Liang at the University of Science and Technology of China in Hefei, the team transferred entangled states from the electron spins of solid-state defects to the spins of surrounding atomic nuclei, which are far more resilient to noise. The research has been published in Physical Review Letters.
Source: Nuclear-spin swap extends room-temperature entanglement lifetime up to 240-fold