American Physical Society Focus October 26, 2018
An international team of researchers (Austria, Australia, Spain, Italy) has demonstrated that quantum entanglement can be symmetry protected in the interaction with a single subwavelength plasmonic nanoaperture. By using specially engineered two-photon states to match the properties of the nanoaperture they demonstrated that two-photon entanglement can be either completely preserved or completely lost after the interaction with the nanoaperture, solely depending on the relative phase between the quantum states. The work should help in finding ways to keep delicate quantum information from being destroyed in future nanoscale chips… read more. TECHNICAL ARTICLE
Future computing devices could rely on the manipulation of quantum states of light confined within nanoscale structures. Credit: Getty Images/nmlfd