superposition of time states tagged posts

New device creates entangled photons that span the traditional telecommunications spectrum, making it appealing for multi-channel quantum communication and more powerful quantum computers. Credit: Michael Kues, Institut National de la Recherche Scientifique (INRS), University of Quebec, Canada

Discovery is a significant step toward multi-channel quantum communication and higher capacity quantum computers. An international team has built a chip that generates multiple frequencies from a robust quantum system that produces time-bin entangled photons. In contrast to other quantum state realizations, entangled photons don’t need bulky equipment to keep them in their quantum state, and they can transmit quantum information across long distances...