Major discovery in controlling quantum states of single atoms

Science Daily  February 16, 2018
To protect the quantum properties of a spin, control over its local environment, including energy relaxation and decoherence processes, is crucial. An international team of researchers (South Korea, USA – industry, Germany, Switzerland, Portugal, Spain) was able to precisely image individual iron atoms and measure and control the time that the iron atom can maintain its quantum behavior. They showed that the loss in quantum state superposition is mainly caused by nearby electrons that the researchers injected with extreme control into the iron atom. Understanding these destructive interactions allows us to avoid them in future experiments and improve the performance of magnetic quantum sensors… read more. Open Access TECHNICAL ARTICLE

The metallic tip of a scanning tunneling microscope is used to drive the magnetic quantum state of an iron atom into a different direction. Credit: Institute for Basic Science (IBS)

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